This is a list of all Virtual Nerd tutorials in Texas Standards, organized by topic.

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### Texas digits Grade 6 Standards

#### use numerical or graphical representations to solve problems

#### use numerical or graphical representations to analyze problems

##### summarize categorical data with numerical and graphical summaries, including the mode, the percent of values in each category (relative frequency table), and the percent bar graph, and use these summaries to describe the data distribution.

##### summarize numeric data with numerical summaries, including the mean and median (measures of center) and the range and interquartile range (IQR) (measures of spread), and use these summaries to describe the center, spread, and shape of the data distribution

##### use the graphical representation of numeric data to describe the center, spread, and shape of the data distribution

##### represent numeric data graphically, including dot plots, stem-andleaf plots, histograms, and box plots

#### use coordinate geometry to identify locations on a plane

#### use equations and inequalities to solve problems

##### model and solve one-variable, one-step equations and inequalities that represent problems, including geometric concepts

- What is the Triangle Sum Theorem?
- How Do You Use Addition to Solve an Inequality Word Problem?
- What is a Solution to an Inequality?
- How Do You Determine Whether a Triangle Can Be Formed Given Three Side Lengths?
- How Do You Solve an Equation Using Addition?
- How Do You Solve an Equation Using Division?
- How Do You Find the Area of a Rectangle?

##### determine if the given value(s) make(s) one-variable, one-step equations or inequalities true.

#### use equations and inequalities to represent situations

##### write corresponding real-world problems given one-variable, onestep equations or inequalities.

##### represent solutions for one-variable, one-step equations and inequalities on number lines

##### write one-variable, one-step equations and inequalities to represent constraints or conditions within problems

- How Do You Translate a Phrase with One Variable and Number Into a Mathematical Expression?
- How Do You Use Addition to Solve an Inequality Word Problem?
- How Do You Find the Area of a Rectangle?
- What is the Triangle Sum Theorem?
- What's an Inequality?
- How Do You Determine Whether a Triangle Can Be Formed Given Three Side Lengths?

#### use geometry to represent relationships and solve problems

##### determine solutions for problems involving the area of rectangles, parallelograms, trapezoids, and triangles and volume of right rectangular prisms where dimensions are positive rational numbers.

- What is the Formula for the Area of a Parallelogram?
- What is the Formula for the Volume of a Prism?
- How Do You Multiply Decimals?
- What Does It Mean to Divide Fractions?
- What is the Formula for the Area of a Triangle?
- How Do You Multiply A Whole Number By A Fraction?
- What is the Formula for the Area of a Trapezoid?
- How Do You Find the Area of a Rectangle?
- How Do You Find the Area of a Triangle?
- How Do You Multiply Mixed Numbers?

##### write equations that represent problems related to the area of rectangles, parallelograms, trapezoids, and triangles and volume of right rectangular prisms where dimensions are positive rational numbers

##### model area formulas for parallelograms, trapezoids, and triangles by decomposing and rearranging parts of these shapes

##### extend previous knowledge of triangles and their properties to include the sum of angles of a triangle, the relationship between the lengths of sides and measures of angles in a triangle, and determining when three lengths form a triangle

#### develop concepts of expressions and equations

##### generate equivalent expressions using the properties of operations: inverse, identity, commutative, associative, and distributive properties.

- How Do You Turn a Fraction Into a Terminating Decimal?
- What are the Identity Properties of Addition and Multiplication?
- What is an Equation?
- What is the Distributive Property?
- How Do You Represent Real World Situations Using Integers?
- What is the Commutative Property of Addition?
- What Does It Mean to Divide Fractions?
- How Do You Add Two Negative Numbers?
- What is the Associative Property of Addition?

##### determine if two expressions are equivalent using concrete models, pictorial models, and algebraic representations

##### distinguish between expressions and equations verbally, numerically, and algebraically

##### generate equivalent numerical expressions using order of operations, including whole number exponents and prime factorization

#### use multiple representations to describe algebraic relationships

##### represent a given situation using verbal descriptions, tables, graphs, and equations in the form y = kx or y = x + b.

- What Are Dependent and Independent Variables?
- How Do You Graph a Relationship Between Two Variables?
- What are the Identity Properties of Addition and Multiplication?
- What Are Numerical and Algebraic Expressions?
- How Do You Write a Rule for a Table?
- How Do You Translate a Phrase with One Variable and Number Into a Mathematical Expression?

##### write an equation that represents the relationship between independent and dependent quantities from a table

##### identify independent and dependent quantities from tables and graphs

#### solve problems involving proportional relationships

##### use equivalent fractions, decimals, and percents to show equal parts of the same whole.

##### solve real-world problems to find the whole given a part and the percent, to find the part given the whole and the percent, and to find the percent given the part and the whole, including the use of concrete and pictorial models

##### represent mathematical and real-world problems involving ratios and rates using scale factors, tables, graphs, and proportions

#### develop an understanding of proportional relationships in problem situations

##### convert units within a measurement system, including the use of proportions and unit rates.

##### generate equivalent forms of fractions, decimals, and percents using real-world problems, including problems that involve money

##### represent benchmark fractions and percents such as 1%, 10%, 25%, 33 1/3%, and multiples of these values using 10 by 10 grids, strip diagrams, number lines, and numbers

##### represent ratios and percents with concrete models, fractions, and decimals

##### give examples of rates as the comparison by division of two quantities having different attributes, including rates as quotients

##### give examples of ratios as multiplicative comparisons of two quantities describing the same attribute

##### apply qualitative and quantitative reasoning to solve prediction and comparison of real-world problems involving ratios and rates

##### compare two rules verbally, numerically, graphically, and symbolically in the form of y = ax or y = x + a in order to differentiate between additive and multiplicative relationships

#### represent addition, subtraction, multiplication, and division while solving problems and justifying solutions

##### add, subtract, multiply, and divide integers fluently

##### represent integer operations with concrete models and connect the actions with the models to standardized algorithms

##### determine, with and without computation, whether a quantity is increased or decreased when multiplied by a fraction, including values greater than or less than one

##### recognize that dividing by a rational number and multiplying by its reciprocal result in equivalent values

#### represent and use rational numbers in a variety of forms

##### multiply and divide positive rational numbers fluently

- How Do You Divide Fractions?
- How Do You Turn a Fraction Into a Terminating Decimal?
- How Do You Solve an Equation Using Division?
- What Does It Mean to Divide Fractions?
- How Do You Multiply Mixed Numbers?
- How Do You Multiply Decimals?
- How Do You Divide a Decimal by a Decimal?
- How Do You Multiply A Whole Number By A Fraction?

##### extend representations for division to include fraction notation such as a/b represents the same number as a รท b where b does not equal 0

##### order a set of rational numbers arising from mathematical and realworld contexts

##### locate, compare, and order integers and rational numbers using a number line

##### identify a number, its opposite, and its absolute value

##### classify whole numbers, integers, and rational numbers using a visual representation such as a Venn diagram to describe relationships between sets of numbers

#### acquire and demonstrate mathematical understanding

##### display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication.

- How Do You Write the Prime Factorization of a Number Using Exponents?
- What is the Commutative Property of Addition?
- How Do You Find the Area of a Triangle?
- What Are Numerical and Algebraic Expressions?
- What's an Inequality?
- What's a Ratio?
- How Do You Find Equivalent Ratios?
- How Do You Find Equivalent Ratios by Making a Table?
- What is the Interquartile Range?
- What are Rates and Unit Rates?
- How Do You Find the Range of a Data Set?
- How Do You Use an Equation to Find a Part of a Whole?
- How Do You Multiply Mixed Numbers?
- How Do You Figure Out the Sign of a Product or Quotient?
- What is a Line Plot?
- What is the Triangle Sum Theorem?
- How Do You Find the Area of a Rectangle?
- What is a Stem-And-Leaf Plot?
- What is a Box-and-Whisker Plot?
- How Do You Put the Sides of a Triangle in Order According to Size if You Know Two Angles of the Triangle?
- What is an Equation?
- What's the Order of Operations?
- What is the Associative Property of Addition?
- What's a Percent?
- How Do You Turn a Fraction Into a Terminating Decimal?
- What are Equivalent Ratios?
- What is the Formula for the Volume of a Prism?
- How Do You Find the Surface Area of a Pyramid Using a Net?

##### analyze mathematical relationships to connect and communicate mathematical ideas

- What is a Stem-And-Leaf Plot?
- How Do You Put the Sides of a Triangle in Order According to Size if You Know Two Angles of the Triangle?
- How Do You Solve an Equation Using Division?
- How Do You Graph a Rectangle on a Coordinate Plane?
- How Do You Solve an Equation Using Addition?
- How Do You Write a Rule for a Table?
- How Do You Represent Real World Situations Using Integers?
- How Do You Turn a Fraction Into a Terminating Decimal?
- What is the Formula for the Area of a Parallelogram?
- What are Equivalent Ratios?
- How Do You Graph a Relationship Between Two Variables?
- What is the Formula for the Volume of a Prism?
- How Do You Find the Surface Area of a Pyramid Using a Net?
- How Do You Put Fractions and Decimals in Order?
- How Do You Find the Area of a Triangle?
- What's a Ratio?
- How Do You Find Equivalent Ratios?
- What are the Identity Properties of Addition and Multiplication?
- What is the Mode of a Data Set?
- What is the Interquartile Range?
- What are Rates and Unit Rates?
- What is the Formula for the Area of a Triangle?
- How Do You Find the Range of a Data Set?
- How Do You Find the Surface Area of a Rectangular Prism Using a Net?
- How Do You Use an Equation to Find a Part of a Whole?
- How Do You Find the Area of a Rectangle in the Coordinate Plane?
- How Do You Multiply A Whole Number By A Fraction?
- What is the Triangle Sum Theorem?
- What is the Formula for the Area of a Trapezoid?
- How Do You Find the Area of a Rectangle?

##### create and use representations to organize, record, and communicate mathematical ideas

- What's a Ratio?
- How Do You Find Equivalent Ratios?
- What are the Identity Properties of Addition and Multiplication?
- What is the Mode of a Data Set?
- What is a Box-and-Whisker Plot?
- How Do You Use an Equation to Find a Part of a Whole?
- What's a Percent?
- What is the Triangle Sum Theorem?
- How Do You Find the Area of a Rectangle?
- What is a Histogram?
- What is a Stem-And-Leaf Plot?
- What Are Numerical and Algebraic Expressions?
- How Do You Find Equivalent Ratios by Making a Table?
- How Do You Solve an Equation Using Addition?
- How Do You Write a Rule for a Table?
- How Do You Turn a Fraction Into a Terminating Decimal?
- What are Equivalent Ratios?
- What is a Line Plot?
- How Do You Graph a Relationship Between Two Variables?
- How Do You Put Fractions and Decimals in Order?
- How Do You Find Percents Mentally Using Fractions?

##### communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate

- How Do You Find Equivalent Ratios by Making a Table?
- How Do You Determine Whether a Triangle Can Be Formed Given Three Side Lengths?
- How Do You Write a Rule for a Table?
- What is the Interquartile Range?
- What are Rates and Unit Rates?
- How Do You Find the Range of a Data Set?
- How Do You Add Two Negative Numbers?
- How Do You Find the Surface Area of a Rectangular Prism Using a Net?
- How Do You Find the Area of a Rectangle in the Coordinate Plane?
- How Do You Multiply A Whole Number By A Fraction?
- What is an Equation?
- What is a Solution to an Inequality?
- What's the Order of Operations?
- How Do You Turn a Fraction Into a Terminating Decimal?
- What is the Associative Property of Addition?
- What is a Line Plot?
- How Do You Graph a Relationship Between Two Variables?
- How Do You Find the Mean of a Data Set?
- How Do You Put Fractions and Decimals in Order?
- What's a Rational Number?
- How Do You Find Percents Mentally Using Fractions?
- How Do You Divide Fractions?
- How Do You Rewrite Subtraction as Addition?
- How Do You Write the Prime Factorization of a Number Using Exponents?
- What's a Ratio?
- What is the Commutative Property of Addition?
- What are the Identity Properties of Addition and Multiplication?
- What is the Mode of a Data Set?
- How Do You Identify Points on a Graph?
- How Do You Use Addition to Solve an Inequality Word Problem?
- What is a Box-and-Whisker Plot?
- How Do You Use an Equation to Find a Part of a Whole?
- How Do You Put the Sides of a Triangle in Order According to Size if You Know Two Angles of the Triangle?
- What's an Inequality?
- How Do You Graph a Rectangle on a Coordinate Plane?
- How Do You Divide a Decimal by a Decimal?
- How Do You Multiply Mixed Numbers?
- What's a Percent?
- How Do You Represent Real World Situations Using Integers?
- How Do You Figure Out the Sign of a Product or Quotient?
- What is the Triangle Sum Theorem?
- How Do You Find the Area of a Rectangle?
- What is a Histogram?
- What Does Absolute Value Mean?
- What is the Distributive Property?
- What Are Dependent and Independent Variables?
- What is a Stem-And-Leaf Plot?
- How Do You Compare Integers Using a Number Line?

##### select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems

- What Does It Mean to Divide Fractions?
- How Do You Solve an Equation Using Addition?
- How Do You Divide a Decimal by a Decimal?
- How Do You Multiply Mixed Numbers?
- How Do You Represent Real World Situations Using Integers?
- How Do You Figure Out the Sign of a Product or Quotient?
- What Does Absolute Value Mean?
- How Do You Compare Integers Using a Number Line?
- How Do You Determine Whether a Triangle Can Be Formed Given Three Side Lengths?
- How Do You Find the Range of a Data Set?
- How Do You Add Two Negative Numbers?
- How Do You Find the Surface Area of a Rectangular Prism Using a Net?
- How Do You Find the Area of a Rectangle in the Coordinate Plane?
- How Do You Multiply Decimals?
- How Do You Multiply A Whole Number By A Fraction?
- How Do You Solve an Equation Using Division?
- What is an Equation?
- What is a Solution to an Inequality?
- What's the Order of Operations?
- How Do You Turn a Fraction Into a Terminating Decimal?
- How Do You Find the Mean of a Data Set?
- How Do You Put Fractions and Decimals in Order?
- How Do You Divide Fractions?
- How Do You Rewrite Subtraction as Addition?
- How Do You Find the Surface Area of a Pyramid Using a Net?
- How Do You Write the Prime Factorization of a Number Using Exponents?
- How Do You Evaluate an Algebraic Expression with One Variable?
- How Do You Identify Points on a Graph?
- How Do You Use an Equation to Find a Part of a Whole?

##### use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution

- How Do You Multiply A Whole Number By A Fraction?
- How Do You Solve an Equation Using Division?
- What is a Solution to an Inequality?
- How Do You Use an Equation to Find a Part of a Whole?
- What Does It Mean to Divide Fractions?
- How Do You Solve an Equation Using Addition?
- How Do You Divide a Decimal by a Decimal?
- How Do You Multiply Mixed Numbers?
- What is the Associative Property of Addition?
- How Do You Multiply Decimals?

##### apply mathematics to problems arising in everyday life, society, and the workplace

- How Do You Convert Gallons to Pints?
- What's a Percent?
- How Do You Find the Area of a Rectangle?
- How Do You Find the Surface Area of a Pyramid Using a Net?
- How Do You Evaluate an Algebraic Expression with One Variable?
- What is a Line Plot?
- How Do You Use an Equation to Find a Part of a Whole?
- What Does It Mean to Divide Fractions?
- How Do You Find the Surface Area of a Rectangular Prism Using a Net?

### Texas digits Grade 7 Standards

#### develop an economic way of thinking and problem solving useful in ones life as a knowledgeable consumer and investor

#### use statistical representations to analyze data

##### compare two groups of numeric data using comparative dot plots or box plots by comparing their shapes, centers, and spreads

##### use data from a random sample to make inferences about a population

##### compare two populations based on data in random samples from these populations, including informal comparative inferences about differences between the two populations

#### solve one-variable equations and inequalities

##### model and solve one-variable, two-step equations and inequalities

- How Do You Solve an Equation Using Addition?
- How Do You Solve a Two-Step Equation?
- What are Acute, Obtuse, Right, and Straight Angles?
- How Do You Write an Equation From a Word Problem?
- How Do You Find a Missing Angle in a Right Triangle?
- How Do You Solve a Two-Step Inequality?
- How Do You Solve a One-Step Inequality Using Subtraction?
- What is a Circle?

##### determine if the given value(s) make(s) one-variable, two-step equations and inequalities true

##### write and solve equations using geometry concepts, including the sum of the angles in a triangle, and angle relationships

#### use one-variable equations and inequalities to represent situations

#### solve geometric problems

##### solve problems involving the volume of rectangular prisms, triangular prisms, rectangular pyramids, and triangular pyramids

##### determine the circumference and area of circles

##### determine the area of composite figures containing combinations of rectangles, squares, parallelograms, trapezoids, triangles, semicircles, and quarter circles

##### solve problems involving the lateral and total surface area of a rectangular prism, rectangular pyramid, triangular prism, and triangular pyramid by determining the area of the shapes net

#### develop geometric relationships with volume

##### model the relationship between the volume of a rectangular prism and a rectangular pyramid having both congruent bases and heights and connect that relationship to the formulas

##### explain verbally and symbolically the relationship between the volume of a triangular prism and a triangular pyramid having both congruent bases and heights and connect that relationship to the formulas

##### use models to determine the approximate formulas for the circumference and area of a circle and connect the models to the actual formulas

#### represent linear relationships using multiple representations

#### use probability and statistics to describe or solve problems involving proportional relationships

##### select and use different simulations to represent simple and compound events with and without technology

##### make predictions and determine solutions using experimental data for simple and compound events

##### represent sample spaces for simple and compound events using lists and tree diagrams

##### make predictions and determine solutions using theoretical probability for simple and compound events

##### find the probabilities of a simple event and its complement and describe the relationship between the two

##### solve problems using qualitative and quantitative predictions and comparisons from simple experiments

##### determine experimental and theoretical probabilities related to simple and compound events using data and sample spaces

##### solve problems using data represented in bar graphs, dot plots, and circle graphs, including part-to-whole and part-to-part comparisons and equivalents

#### use geometry to describe or solve problems involving proportional relationships

#### represent and solve problems involving proportional relationships

##### represent constant rates of change in mathematical and real-world problems given pictorial, tabular, verbal, numeric, graphical, and algebraic representations, including d = rt

- What's the Y-Intercept?
- How Do You Find the Rate of Change Between Two Points on a Graph?
- What's the Constant of Variation?
- What is the Formula for Simple Interest?
- What's the Formula Connecting Distance, Speed, and Time?
- What is the Formula for Compound Interest?
- What's the Direct Variation or Direct Proportionality Formula?

##### calculate unit rates from rates in mathematical and real-world problems

##### determine the constant of proportionality (k = y/x) within mathematical and real-world problems

##### solve problems involving ratios, rates, and percents, including multistep problems involving percent increase and percent decrease, and financial literacy problems

- What is a Scale Drawing?
- What is the Formula for Simple Interest?
- How Do You Figure Out Sales Tax?
- How Do You Figure Out a Price Markup?
- What's the Formula Connecting Distance, Speed, and Time?
- What is the Formula for Compound Interest?
- How Do You Figure Out How Much Something is Marked Down?
- What is the Percent Equation?
- What is the Formula for the Area of a Circle?
- What's the Direct Variation or Direct Proportionality Formula?
- What are Rates and Unit Rates?
- What's a Percent of Change?
- What are Equivalent Ratios?
- What's the Constant of Variation?

##### convert between measurement systems, including the use of proportions and the use of unit rates

#### add, subtract, multiply, and divide while solving problems and justifying solutions

##### add, subtract, multiply, and divide rational numbers fluently

- How Do You Add Two Negative Numbers?
- What's a Rational Number?
- What is the Percent Equation?
- What's the Formula Connecting Distance, Speed, and Time?
- How Do You Figure Out the Sign of a Product or Quotient?
- How Do You Rewrite Subtraction as Addition?
- What's the Direct Variation or Direct Proportionality Formula?
- What is a Scale Drawing?
- How Do You Convert a Temperature from Fahrenheit to Celsius?
- How Do You Figure Out Sales Tax?

##### apply and extend previous understandings of operations to solve problems using addition, subtraction, multiplication, and division of rational numbers

- How Do You Solve an Equation Using Addition?
- What is the Formula for the Area of a Circle?
- What's the Formula Connecting Distance, Speed, and Time?
- How Do You Figure Out the Sign of a Product or Quotient?
- How Do You Rewrite Subtraction as Addition?
- What is the Formula for the Volume of a Prism?
- What's the Direct Variation or Direct Proportionality Formula?
- What is a Scale Drawing?
- How Do You Convert a Temperature from Fahrenheit to Celsius?
- How Do You Figure Out Sales Tax?
- How Do You Add Two Negative Numbers?
- How Do You Find the Surface Area of a Pyramid Using a Net?
- How Do You Figure Out a Price Markup?
- What is Circumference?
- How Do You Find the Surface Area of a Rectangular Prism Using a Net?
- What is the Percent Equation?

#### represent and use rational numbers in a variety of forms

#### acquire and demonstrate mathematical understanding

##### select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems

- How Do You Figure Out the Sign of a Product or Quotient?
- How Do You Solve a Two-Step Equation?
- How Do You Convert Yards to Meters?
- What's a Percent of Change?
- How Do You Rewrite Subtraction as Addition?
- What is an Unbiased Sample?
- What is a Simulation?
- What's a Rational Number?
- What is Circumference?
- What are Equivalent Ratios?
- What is the Formula for the Volume of a Prism?
- What is the Formula for the Volume of a Pyramid?
- What is the Formula for the Area of a Circle?
- How Do You Add Two Negative Numbers?
- What's the Formula Connecting Distance, Speed, and Time?
- How Do You Solve an Equation Using Addition?
- What are Rates and Unit Rates?
- How Do You Solve a Two-Step Inequality?
- What are Supplementary Angles?
- How Do You Solve a One-Step Inequality Using Subtraction?
- What is the Distributive Property?
- How Do You Find the Surface Area of a Pyramid Using a Net?
- How Do You Use a Sample to Make Predictions About a Population?
- What is a Circle?
- What are Acute, Obtuse, Right, and Straight Angles?
- How Do You Use a Simulation to Solve a Problem?
- How Do You Find the Area of a Composite Figure?
- What is Experimental Probability?
- How Do You Find the Probability of a Simple Event?
- How Do You Convert a Temperature from Fahrenheit to Celsius?
- How Do You Find the Surface Area of a Rectangular Prism Using a Net?

##### apply mathematics to problems arising in everyday life, society, and the workplace

- How Do You Find the Area of a Composite Figure?
- What is a Scale Drawing?
- What is the Formula for Simple Interest?
- How Do You Convert a Temperature from Fahrenheit to Celsius?
- What's the Formula Connecting Distance, Speed, and Time?
- How Do You Find the Mean of a Data Set?
- What are Like Terms?
- What are Similar Figures?
- What is the Formula for Compound Interest?
- What's a Percent of Change?
- How Do You Figure Out a Price Markup?
- What's the Direct Variation or Direct Proportionality Formula?
- What is an Unbiased Sample?
- How Do You Write an Equation From a Word Problem?
- What is a Net?
- How Do You Solve a Two-Step Equation by Distributing a Fraction First?
- How Do You Figure Out How Much Something is Marked Down?
- How Do You Figure Out Sales Tax?
- What is the Distributive Property?
- How Do You Use a Sample to Make Predictions About a Population?

##### use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution

- How Do You Find the Surface Area of a Rectangular Prism Using a Net?
- How Do You Convert Yards to Meters?
- What is the Formula for the Volume of a Prism?
- What's the Formula Connecting Distance, Speed, and Time?
- How Do You Solve a Two-Step Inequality?
- How Do You Solve a One-Step Inequality Using Subtraction?

##### communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate

- What are Similar Figures?
- What are Rates and Unit Rates?
- How Do You Solve a Two-Step Inequality?
- What is the Formula for Compound Interest?
- How Do You Solve a One-Step Inequality Using Subtraction?
- What is the Distributive Property?
- What's the Direct Variation or Direct Proportionality Formula?
- How Do You Use a Sample to Make Predictions About a Population?
- What are Vertical Angles?
- How Do You Find a Missing Angle in a Right Triangle?
- What are Compound Events?
- How Do You Write an Equation From a Word Problem?
- What is a Net?
- How Do You Find the Area of a Composite Figure?
- What is Experimental Probability?
- How Do You Find the Probability of a Simple Event?
- What are Complementary Angles?
- How Do You Graph a Linear Equation by Making a Table?
- How Do You Solve a Two-Step Equation by Distributing a Fraction First?
- What is a Circle Graph?
- What's the Constant of Variation?
- How Do You Figure Out the Sign of a Product or Quotient?
- What's a Percent of Change?
- How Do You Rewrite Subtraction as Addition?
- What is an Unbiased Sample?
- How Do You Determine Which Operations to Use in a Word Problem?
- What's a Rational Number?
- What is Circumference?
- What are Equivalent Ratios?
- What is the Percent Equation?
- What is a Scale Drawing?
- What is the Formula for Simple Interest?
- How Do You Solve and Graph a Two-Step Inequality?
- What is the Formula for the Area of a Circle?
- How Do You Add Two Negative Numbers?
- What's the Formula Connecting Distance, Speed, and Time?
- What is Probability?
- What's the Y-Intercept?
- What are Like Terms?
- How Do You Find the Rate of Change Between Two Points on a Graph?
- What is a Sample Space?

##### display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication

- How Do You Find the Surface Area of a Pyramid Using a Net?
- How Do You Figure Out a Price Markup?
- What is a Sample Space?
- What are Similar Figures?
- What is the Formula for Compound Interest?
- What's a Percent of Change?
- How Do You Rewrite Subtraction as Addition?
- What's the Direct Variation or Direct Proportionality Formula?
- How Do You Use a Sample to Make Predictions About a Population?
- What's a Rational Number?
- What are Vertical Angles?
- What is a Scale Drawing?
- What is an Unbiased Sample?
- How Do You Figure Out Sales Tax?
- How Do You Find the Area of a Composite Figure?
- What is Experimental Probability?
- How Do You Solve and Graph a Two-Step Inequality?
- How Do You Find the Probability of a Simple Event?
- What are Complementary Angles?
- How Do You Add Two Negative Numbers?
- What are Like Terms?
- What is a Circle Graph?
- What are Rates and Unit Rates?
- How Do You Solve a Two-Step Equation?
- What are Supplementary Angles?
- How Do You Use a Tree Diagram to Count the Number of Outcomes in a Sample Space?
- How Do You Compare Two Data Sets Using Box-and-Whisker Plots?
- What's the Constant of Variation?
- What are Acute, Obtuse, Right, and Straight Angles?
- How Do You Determine Which Operations to Use in a Word Problem?
- What is the Percent Equation?
- How Do You Find a Missing Angle in a Right Triangle?
- What is the Formula for Simple Interest?
- How Do You Find the Mean of a Data Set?

##### create and use representations to organize, record, and communicate mathematical ideas

- What are Supplementary Angles?
- What's the Constant of Variation?
- What is a Circle?
- How Do You Figure Out the Sign of a Product or Quotient?
- What are Acute, Obtuse, Right, and Straight Angles?
- What is an Unbiased Sample?
- How Do You Find the Probability of Independent Events?
- How Do You Find the Surface Area of a Rectangular Prism Using a Net?
- What are Adjacent Angles?
- How Do You Use a Tree Diagram to Count the Number of Outcomes in a Sample Space?
- How Do You Compare Two Data Sets Using Box-and-Whisker Plots?
- What is the Formula for Compound Interest?
- What is the Fundamental Counting Principle?
- What is the Distributive Property?
- What's the Direct Variation or Direct Proportionality Formula?
- What is a Simulation?
- What are Vertical Angles?
- How Do You Find a Missing Angle in a Right Triangle?
- What is a Net?
- What are Complementary Angles?
- How Do You Graph a Linear Equation by Making a Table?
- How Do You Solve a Two-Step Equation by Distributing a Fraction First?

##### analyze mathematical relationships to connect and communicate mathematical ideas

- How Do You Use a Tree Diagram to Count the Number of Outcomes in a Sample Space?
- How Do You Compare Two Data Sets Using Box-and-Whisker Plots?
- How Do You Use a Simulation to Solve a Problem?
- What is the Fundamental Counting Principle?
- What is the Distributive Property?
- How Do You Determine Which Operations to Use in a Word Problem?
- What is a Simulation?
- What is Circumference?
- What is the Percent Equation?
- How Do You Find a Missing Angle in a Right Triangle?
- What is the Formula for Simple Interest?
- How Do You Convert a Temperature from Fahrenheit to Celsius?
- What is the Formula for the Area of a Circle?
- How Do You Graph a Linear Equation by Making a Table?
- What is Probability?
- What's the Y-Intercept?
- How Do You Find the Rate of Change Between Two Points on a Graph?
- What is a Sample Space?
- What are Similar Figures?
- How Do You Use a Sample to Make Predictions About a Population?
- What is the Formula for the Volume of a Prism?
- What is the Formula for the Volume of a Pyramid?
- What is an Unbiased Sample?
- What are Compound Events?
- How Do You Find the Probability of Independent Events?
- How Do You Find the Area of a Composite Figure?
- What is Experimental Probability?
- How Do You Find the Probability of a Simple Event?
- What is a Circle Graph?

### Texas digits Grade 8 Standards

#### develop an economic way of thinking and problem solving useful in ones life as a knowledgeable consumer and investor

#### use statistical procedures to describe data

##### construct a scatterplot and describe the observed data to address questions of association such as linear, non-linear, and no association between bivariate data

##### determine the mean absolute deviation and use this quantity as a measure of the average distance data are from the mean using a data set of no more than 10 data points

#### develop transformational geometry concepts

##### generalize the properties of orientation and congruence of rotations, reflections, translations, and dilations of two-dimensional shapes on a coordinate plane

##### differentiate between transformations that preserve congruence and those that do not

##### explain the effect of translations, reflections over the x- or y-axis, and rotations limited to 90, 180, 270, and 360 dgrees as applied to two-dimensional shapes on a coordinate plane using an algebraic representation

##### model the effect on linear and area measurements of dilated two-dimensional shapes

#### use multiple representations to develop foundational concepts of simultaneous linear equations

#### use one-variable equations or inequalities in problem situations

##### write a corresponding real-world problem when given a onevariable equation or inequality with variables on both sides of the equal sign using rational number coefficients and constants

##### model and solve one-variable equations with variables on both sides of the equal sign that represent mathematical and real-world problems using rational number coefficients and constants

##### use informal arguments to establish facts about the angle sum and exterior angle of triangles, the angles created when parallel lines are cut by a transversal, and the angle- angle criterion for similarity of triangles

#### use geometry to solve problems

##### solve problems involving the volume of cylinders, cones, and spheres

##### use previous knowledge of surface area to make connections to the formulas for lateral and total surface area and determine solutions for problems involving rectangular prisms, triangular prisms, and cylinders

##### use the Pythagorean Theorem and its converse to solve problems

##### determine the distance between two points on a coordinate plane using the Pythagorean Theorem

##### write one-variable equations or inequalities with variables on both sides that represent problems using rational number coefficients and constants

#### develop mathematical relationships and make connections to geometric formulas

#### use proportional and relationships to develop foundational concepts of functions

##### contrast bivariate sets of data that suggest a linear relationship with bivariate sets of data that do not suggest a linear relationship from a graphical representation

##### use a trend line that approximates the linear relationship between bivariate sets of data to make predictions

##### represent linear proportional situations with tables, graphs, and equations in the form of y = kx

##### represent linear non-proportional situations with tables, graphs, and equations in the form of y = mx + b, where b does not equal 0

##### solve problems involving direct variation

##### identify examples of proportional and non-proportional functions that arise from mathematical and real-world problems

##### write an equation in the form y = mx + b to model a linear relationship between two quantities using verbal, numerical, tabular, and graphical representations

##### distinguish between proportional and non-proportional situations using tables, graphs, and equations in the form y = kx or y = mx + b, where b does not equal 0

##### identify functions using sets of ordered pairs, tables, mappings, and graphs

#### explain proportional and non-proportional relationships involving slope

##### graph proportional relationships, interpreting the unit rate as the slope of the line that models the relationship

##### use data from a table or graph to determine the rate of change or slope and y-intercept in mathematical and real-world problems

- What Does Direct Variation Look Like on a Graph?
- How Do You Find the Rate of Change Between Two Points on a Graph?
- How Do You Write and Use a Prediction Equation?
- What's Slope-Intercept Form of a Linear Equation?
- What Does the Slope of a Line Mean?
- How Do You Solve a Word Problem Using the Direct Variation Formula?
- What is a Linear Function?
- What's the Y-Intercept?

#### use proportional relationships to describe dilations

##### generalize that the ratio of corresponding sides of similar shapes are proportional, including a shape and its dilation

##### compare and contrast the attributes of a shape and its dilation(s) on a coordinate plane

##### use an algebraic representation to explain the effect of a given positive rational scale factor applied to two-dimensional figures on a coordinate plane with the origin as the center of dilation

#### represent and use real numbers in a variety of forms

##### extend previous knowledge of sets and subsets using a visual representation to describe relationships between sets of real numbers

##### approximate the value of an irrational number, including pi and square roots of numbers less than 225, and locate that rational number approximation on a number line

##### convert between standard decimal notation and scientific notation

##### order a set of real numbers arising from mathematical and real-world contexts

#### acquire and demonstrate mathematical understanding

##### select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems

- How Do You Solve an Equation with Variables on Both Sides?
- What is the Mean of a Data Set?
- What's a Scatter Plot?
- How Do You Find the Length of a Leg of a Right Triangle?
- What's Positive Correlation?
- How Do You Multiply Two Numbers Using Scientific Notation?
- What is the Converse of the Pythagorean Theorem?
- How Do You Solve a System of Equations Using the Elimination by Addition Method?
- What Is the Distance Formula?
- What Does the Slope of a Line Mean?
- How Do You Convert From Decimal Notation to Scientific Notation?
- How Do You Make a Scatter Plot?
- What is a Translation?
- How Do You Solve a System of Equations Using the Elimination by Subtraction Method?
- What is a Transversal?
- What is a Rotation?
- How Do You Solve a Two-Step Equation?
- How Do You Use a Scatter Plot to Find a Line of Fit?
- What is the Formula for the Volume of a Cone?
- What's the Quotient of Powers Rule?
- What is a Reflection?
- What's the Product of Powers Rule?
- What is an Unbiased Sample?
- What is the Angle-Angle Postulate for Triangle Similarity?
- What is the Formula for the Volume of a Cylinder?
- What is the Formula for the Surface Area of a Cylinder?
- What's Scientific Notation?
- What is the Triangle Sum Theorem?
- How Do You Estimate the Square Root of a Non-Perfect Square?
- How Can You Tell if a Relation is Not a Function?
- What is the Distributive Property?
- What is the Formula for the Volume of a Sphere?
- What's an Irrational Number?
- What is the Pythagorean Theorem?
- How Do You Write and Use a Prediction Equation?
- How Do You Put Real Numbers in Order?
- How Do You Find a Value for x that Makes Two Lines Parallel?

##### apply mathematics to problems arising in everyday life, society, and the workplace

- What is an Unbiased Sample?
- How Do You Use the Formula for Simple Interest?
- How Do You Put Real Numbers in Order?
- How Do You Solve a Two-Step Equation?
- What Does Direct Variation Look Like on a Graph?
- What is the Formula for the Surface Area of a Prism?
- What is the Mean of a Data Set?
- How Do You Multiply Two Numbers Using Scientific Notation?
- How Do You Solve a System of Equations Using the Elimination by Addition Method?
- How Do You Convert From Decimal Notation to Scientific Notation?
- How Do You Solve a System of Equations by Graphing?
- How Do You Solve a System of Equations Using the Elimination by Subtraction Method?

##### use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution

##### communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate

- How Do You Make a Scatter Plot?
- What Does Direct Variation Look Like on a Graph?
- What is a Translation?
- How Do You Solve a System of Equations Using the Elimination by Subtraction Method?
- What is the Formula for the Surface Area of a Prism?
- What is a Rotation?
- How Do You Solve a Two-Step Equation?
- How Do You Use a Scatter Plot to Find a Line of Fit?
- What is the Formula for the Volume of a Cone?
- How Can You Tell When a System of Equations Has Infinitely Many Solutions?
- What's the Quotient of Powers Rule?
- What is a Reflection?
- What is an Identity Equation?
- What's the Product of Powers Rule?
- What is an Unbiased Sample?
- What's a Function?
- What is a Linear Function?
- What's the Y-Intercept?
- What is the Formula for the Volume of a Cylinder?
- What is the Formula for the Surface Area of a Cylinder?
- What's Scientific Notation?
- What's a System of Linear Equations?
- How Do You Estimate the Square Root of a Non-Perfect Square?
- How Can You Tell if a Relation is Not a Function?
- What is the Distributive Property?
- How Do You Solve an Inequality With Variables on Both Sides?
- How Do You Solve a System of Equations by Graphing?
- What's an Irrational Number?
- How Do You Write and Use a Prediction Equation?
- What is a Dilation?
- How Do You Solve an Equation with Variables on Both Sides?
- How Do You Solve a Word Problem Using the Direct Variation Formula?
- What is the Mean of a Data Set?
- What's a Scatter Plot?
- What's Positive Correlation?
- How Do You Use the Formula for Simple Interest?
- How Do You Multiply Two Numbers Using Scientific Notation?
- How Do You Find the Rate of Change Between Two Points on a Graph?
- How Do You Evaluate an Algebraic Expression by Plugging In Values?
- What are Similar Figures?
- How Do You Solve a System of Equations Using the Elimination by Addition Method?
- What Is the Distance Formula?
- What Does the Slope of a Line Mean?
- How Do You Convert From Decimal Notation to Scientific Notation?
- What's Slope-Intercept Form of a Linear Equation?
- What Does Congruent Mean?

##### display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication.

- What Does the Slope of a Line Mean?
- What is the Distributive Property?
- What is a Dilation?
- What Does Congruent Mean?
- What is a Transversal?
- How Do You Find the Length of a Leg of a Right Triangle?
- What are Interior and Exterior Angles of a Polygon?
- How Do You Use the Formula for Simple Interest?
- What's the Product of Powers Rule?
- What is a Linear Function?
- What's the Y-Intercept?
- What is the Formula for the Volume of a Cylinder?
- How Do You Evaluate an Algebraic Expression by Plugging In Values?
- What is the Formula for the Volume of a Sphere?
- What's a System of Linear Equations?
- How Can You Tell if a Relation is Not a Function?
- How Do You Convert From Decimal Notation to Scientific Notation?
- How Do You Put Real Numbers in Order?
- How Do You Use a Scatter Plot to Find a Line of Fit?
- What's the Quotient of Powers Rule?
- What is the Converse of the Pythagorean Theorem?
- What is the Angle-Angle Postulate for Triangle Similarity?
- What is the Triangle Sum Theorem?
- How Do You Solve a System of Equations Using the Substitution Method?
- How Do You Multiply Two Numbers Using Scientific Notation?
- How Do You Estimate the Square Root of a Non-Perfect Square?
- What is an Unbiased Sample?
- How Can You Tell if a Function is Linear or Nonlinear From a Graph?
- How Do You Find the Rate of Change Between Two Points on a Graph?
- What are Similar Figures?
- What Is the Distance Formula?

##### create and use representations to organize, record, and communicate mathematical ideas

- What is a Transversal?
- How Do You Solve a Word Problem Using the Direct Variation Formula?
- What's Positive Correlation?
- How Can You Tell if a Function is Linear or Nonlinear From a Graph?
- How Do You Find the Rate of Change Between Two Points on a Graph?
- What Is the Distance Formula?
- What Does the Slope of a Line Mean?
- What's Slope-Intercept Form of a Linear Equation?
- How Do You Make a Scatter Plot?
- How Do You Solve a System of Equations Using the Elimination by Subtraction Method?
- What is the Formula for the Surface Area of a Prism?
- What is an Identity Equation?
- What is an Unbiased Sample?
- What's a Function?
- What is a Linear Function?
- What's the Y-Intercept?
- What's a System of Linear Equations?
- How Can You Tell if a Relation is Not a Function?
- What is the Distributive Property?
- How Do You Solve an Inequality With Variables on Both Sides?
- How Do You Solve a System of Equations by Graphing?

##### analyze mathematical relationships to connect and communicate mathematical ideas

- How Do You Write and Use a Prediction Equation?
- What's Slope-Intercept Form of a Linear Equation?
- How Do You Solve a System of Equations Using the Elimination by Subtraction Method?
- What is the Formula for the Surface Area of a Prism?
- What is the Mean of a Data Set?
- What is the Angle-Angle Postulate for Triangle Similarity?
- What is the Triangle Sum Theorem?
- How Do You Solve a System of Equations Using the Substitution Method?
- How Do You Multiply Two Numbers Using Scientific Notation?
- What is an Unbiased Sample?
- What's a Function?
- What are Similar Figures?
- How Do You Solve a System of Equations Using the Elimination by Addition Method?
- What is the Distributive Property?
- What is the Pythagorean Theorem?
- How Do You Solve an Inequality With Variables on Both Sides?
- How Do You Find a Value for x that Makes Two Lines Parallel?
- How Do You Solve a System of Equations by Graphing?
- What Does Congruent Mean?
- What is a Transversal?
- What is a Rotation?
- How Do You Find the Length of a Leg of a Right Triangle?
- What is the Formula for the Volume of a Cone?
- What are Interior and Exterior Angles of a Polygon?
- What's the Product of Powers Rule?
- What is the Formula for the Volume of a Cylinder?
- What is the Formula for the Surface Area of a Cylinder?

### Texas Algebra 1 Standards

#### Number and algebraic methods. The student applies the mathematical process standards and algebraic methods to write, solve, analyze, and evaluate equations, relations, and functions.

##### Decide whether relations represented verbally, tabularly, graphically, and symbolically define a function

##### Identify terms of arithmetic and geometric sequences when the sequences are given in function form using recursive processes

##### Evaluate functions, expressed in function notation, given one or more elements in their domains

- What's an Arithmetic Sequence?
- How Do You Find the Common Difference in an Arithmetic Sequence?
- How Do You Write a Quadratic Equation in Vertex Form if You Have the Vertex and Another Point?
- What is Function Notation?
- How Do You Find f(x) If You Have a Value For x?
- How Do You Write a Rule for a Geometric Sequence?
- What's an Exponential Function?
- How Do You Graph an Exponential Function Using a Table?

##### Solve mathematic and scientific formulas, and other literal equations, for a specified variable

- What's Point-Slope Form of a Linear Equation?
- How Do You Use the Square Root Method to Solve a Quadratic Equation with Two Solutions?
- How Do You Solve a Quadratic Equation with Two Solutions by Graphing?
- How Do You Use the Formula for Direct Variation?
- How Do You Write an Equation of a Line in Point-Slope Form If You Have Two Points?
- What's the Direct Variation or Direct Proportionality Formula?
- How Do You Solve a Formula For a Variable?
- What is a Literal Equation?

##### Write a formula for the nth term of arithmetic and geometric sequences, given the value of several of their terms

#### Linear functions, equations, and inequalities. The student applies the mathematical process standards when using graphs of linear functions, key features, and related transformations to represent in multiple ways and solve, with and without technology, equations, inequalities, and systems of equations.

##### Calculate the rate of change of a linear function represented tabularly, graphically, or algebraically in context of mathematical and real-world problems

- How Do You Find the Slope of a Line from a Graph?
- What's the Direct Variation or Direct Proportionality Formula?
- How Do You Write and Use a Prediction Equation?
- How Do You Make a Scatter Plot?
- What's Slope-Intercept Form of a Linear Equation?
- What's the Formula for Slope?
- What's Point-Slope Form of a Linear Equation?
- How Do You Write the Equation of a Line in Slope-Intercept Form If You Have a Graph?
- How Do You Use the Formula for Direct Variation?
- How Do You Write an Equation of a Line in Point-Slope Form If You Have Two Points?
- How Do You Make an Approximate Graph From a Word Problem?

##### Determine the slope of a line given a table of values, a graph, two points on the line, and an equation written in various forms, including y = mx + b, ax + by = c, and y - y1 = m(x - x1)

- What's the Direct Variation or Direct Proportionality Formula?
- What's Standard Form of a Linear Equation?
- What's a Function?
- How Do You Use X- and Y-Intercepts To Graph a Line In Standard Form?
- What's a Function?
- What's Slope-Intercept Form of a Linear Equation?
- How Do You Use the Graph of a Linear Equation to Solve a Word Problem?
- How Do You Know if Two Lines Are Perpendicular?
- How Do You Find the Slope of a Line from a Graph?
- How Do You Graph a Linear Equation by Making a Table?
- What's Point-Slope Form of a Linear Equation?
- How Do You Write the Equation of a Line in Slope-Intercept Form If You Have a Graph?
- How Do You Know if Two Lines are Parallel?
- How Do You Write and Use a Prediction Equation?
- How Do You Use the Formula for Direct Variation?
- How Do You Make a Scatter Plot?
- How Do You Write an Equation of a Line in Point-Slope Form If You Have Two Points?
- What's the Formula for Slope?

##### Graph linear functions on the coordinate plane and identify key features, including x-intercept, y-intercept, zeros, and slope, in mathematical and real-world problems

- How Do You Graph a Linear Equation by Making a Table?
- What's Point-Slope Form of a Linear Equation?
- How Do You Write the Equation of a Line in Slope-Intercept Form If You Have a Graph?
- How Do You Use the Formula for Direct Variation?
- How Do You Write an Equation of a Line in Point-Slope Form If You Have Two Points?
- What's the Direct Variation or Direct Proportionality Formula?
- What's Standard Form of a Linear Equation?
- How Do You Use X- and Y-Intercepts To Graph a Line In Standard Form?
- What's Slope-Intercept Form of a Linear Equation?
- How Do You Use the Graph of a Linear Equation to Solve a Word Problem?

##### Graph the solution set of linear inequalities in two variables on the coordinate plane

##### Graph the solution set of systems of two linear inequalities in two variables on the coordinate plane

##### Estimate graphically the solutions to systems of two linear equations with two variables in real-world problems

##### Graph systems of two linear equations in two variables on the coordinate plane and determine the solutions if they exist

#### Linear functions, equations, and inequalities. The student applies the mathematical process standards when using properties of linear functions to write and represent in multiple ways, with and without technology, linear equations, inequalities, and systems of equations.

##### Write linear equations in two variables in various forms, including y = mx + b, ax + by = c, and y - y1 = m(x - x1), given one point and the slope and given two points

- How Do You Write an Equation of a Line in Point-Slope Form If You Have Two Points?
- What's Standard Form of a Linear Equation?
- How Do You Write and Use a Prediction Equation?
- How Do You Make a Scatter Plot?
- How Do You Use X- and Y-Intercepts To Graph a Line In Standard Form?
- How Do You Know if Two Lines Are Perpendicular?
- What's Slope-Intercept Form of a Linear Equation?
- How Do You Know if Two Lines are Parallel?
- What's Point-Slope Form of a Linear Equation?
- How Do You Write the Equation of a Line in Slope-Intercept Form If You Have a Graph?

##### Write the equation of a line that contains a given point and is parallel to a given line

##### Determine the domain and range of a linear function in mathematical problems; determine reasonable domain and range values for real-world situations, both continuous and discrete; and represent domain and range using inequalities

- What is Function Notation?
- What's Standard Form of a Linear Equation?
- How Do You Find f(x) If You Have a Value For x?
- How Do You Use X- and Y-Intercepts To Graph a Line In Standard Form?
- How Do You Use the Graph of a Linear Equation to Solve a Word Problem?
- How Do You Graph a Linear Equation by Making a Table?

##### Write linear equations in two variables given a table of values, a graph, and a verbal description

- What's Slope-Intercept Form of a Linear Equation?
- How Do You Write an Equation from a Word Problem?
- How Do You Know if Two Lines are Parallel?
- What's Point-Slope Form of a Linear Equation?
- How Do You Write the Equation of a Line in Slope-Intercept Form If You Have a Graph?
- How Do You Use the Formula for Direct Variation?
- How Do You Write an Equation of a Line in Point-Slope Form If You Have Two Points?
- What's the Direct Variation or Direct Proportionality Formula?
- What's Standard Form of a Linear Equation?
- What's a Function?
- How Do You Write and Use a Prediction Equation?
- What's a Function?
- How Do You Make a Scatter Plot?
- How Do You Use X- and Y-Intercepts To Graph a Line In Standard Form?
- How Do You Know if Two Lines Are Perpendicular?

##### Write and solve equations involving direct variation

- How Do You Solve a Proportion Using Cross Products?
- How Do You Use the Formula for Direct Variation?
- What's the Direct Variation or Direct Proportionality Formula?
- What are Similar Figures?
- How Do You Solve a Proportion Using the Multiplication Property of Equality?
- How Do You Find Missing Measurements of Similar Figures Using a Proportion?

##### Write systems of two linear equations given a table of values, a graph, and a verbal description

- How Do You Solve a Word Problem Using Two Equations?
- How Do You Solve a System of Equations Using the Elimination by Multiplication Method?
- How Do You Graph a System of Equations With No Solution?
- How Do You Solve Two Equations with Two Variables?
- How Do You Solve a System of Equations Using the Substitution Method?
- How Do You Solve a System of Equations Using the Elimination by Addition Method?
- How Do You Solve a Word Problem Using the Elimination by Subtraction Method?
- How Do You Solve a System of Equations by Graphing?

##### Write linear inequalities in two variables given a table of values, a graph, and a verbal description

##### Write an equation of a line that is parallel or perpendicular to the x or y axis and determine whether the slope of the line is zero or undefined

##### Write the equation of a line that contains a given point and is perpendicular to a given line

#### Number and algebraic methods. The student applies the mathematical process standards and algebraic methods to rewrite algebraic expressions into equivalent forms.

##### Simplify numerical radical expressions involving square roots

##### Simplify numeric and algebraic expressions using the laws of exponents, including integral and rational exponents

- What are Rational Exponents?
- What's the Power of a Power Rule?
- How Do You Find the Product of Powers?
- What's the Power of a Product Rule?
- What's the Quotient of Powers Rule?
- What's the Product of Powers Rule?
- What Do You Do With a Zero Exponent?
- What Do You Do With a Negative Exponent?
- What's the Power of a Quotient Rule?

#### Number and algebraic methods. The student applies the mathematical process standards and algebraic methods to rewrite in equivalent forms and perform operations on polynomial expressions.

##### Determine the quotient of a polynomial of degree one and polynomial of degree two when divided by a polynomial of degree one and polynomial of degree two when the degree of the divisor does not exceed the degree of the dividend

##### Add and subtract polynomials of degree one and degree two

##### Multiply polynomials of degree one and degree two

- How Do You Figure Out What Factoring Strategy to Use?
- How Do You Factor a 4-Term Polynomial by Grouping?
- How Do You Multiply a Monomial by a Polynomial?
- What's the Grid Method of FOILing?
- How Do You Factor the Greatest Common Factor out of a Polynomial?
- How Do You Use the Formula for the Product of a Sum and a Difference?
- What's the Formula for the Square of a Sum?
- How Do You Multiply Binomials Using FOIL?

##### Factor, if possible, trinomials with real factors in the form ax2 + bx + c, including perfect square trinomials of degree two

- How Do You Divide Two Polynomials by Factoring and Canceling?
- How Do You Find Excluded Values?
- How Do You Factor a Trinomial?
- How Do You Factor a Polynomial Using Difference of Squares?
- How Do You Factor a Polynomial by Guessing and Checking?
- How Do You Use a Shortcut to Factor a Perfect Square Trinomial?
- How Do You Factor a Polynomial Using the A-C Method?
- How Do You Figure Out What Factoring Strategy to Use?
- How Do You Factor a 4-Term Polynomial by Grouping?
- How Do You Figure Out a Template for Factoring a Trinomial?

##### Decide if a binomial can be written as the difference of two squares and, if possible, use the structure of a difference of two squares to rewrite the binomial

##### Rewrite polynomial expressions of degree one and degree two in equivalent forms using the distributive property

- What's the Grid Method of FOILing?
- How Do You Factor a Polynomial by Guessing and Checking?
- How Do You Factor a Polynomial Using the A-C Method?
- How Do You Factor the Greatest Common Factor out of a Polynomial?
- How Do You Figure Out What Factoring Strategy to Use?
- How Do You Factor a 4-Term Polynomial by Grouping?
- How Do You Multiply Binomials Using FOIL?
- How Do You Divide Two Polynomials by Factoring and Canceling?
- How Do You Find Excluded Values?
- How Do You Multiply a Monomial by a Polynomial?

#### Linear functions, equations, and inequalities. The student applies the mathematical process standards to solve, with and without technology, linear equations and evaluate the reasonableness of their solutions.

##### Solve linear equations in one variable, including those for which the application of the distributive property is necessary and for which variables are included on both sides

- How Do You Solve a Proportion Using the Multiplication Property of Equality?
- How Do You Solve an Equation with Variables on Both Sides?
- How Do You Solve a Multi-Step Equation Using the Distributive Property?
- How Do You Find Missing Measurements of Similar Figures Using a Proportion?
- How Do You Solve a Proportion Using Cross Products?
- How Do You Solve an Identity Equation?
- How Do You Solve a Multi-Step Equation with Fractions by Multiplying Away the Fraction?
- What are Similar Figures?

##### Solve systems of two linear equations with two variables for mathematical and real-world problems

- How Do You Solve a System of Equations Using the Substitution Method?
- How Do You Solve a System of Equations Using the Elimination by Addition Method?
- How Do You Solve a Word Problem Using the Elimination by Subtraction Method?
- How Do You Solve a System of Equations by Graphing?
- How Do You Solve a Word Problem Using Two Equations?
- How Do You Solve a System of Equations Using the Elimination by Multiplication Method?
- How Do You Graph a System of Equations With No Solution?
- How Do You Solve Two Equations with Two Variables?

##### Solve linear inequalities in one variable, including those for which the application of the distributive property is necessary and for which variables are included on both sides

#### Quadratic functions and equations. The student applies the mathematical process standards when using properties of quadratic functions to write and represent in multiple ways, with and without technology, quadratic equations.

##### Determine the domain and range of quadratic functions and represent the domain and range using inequalities

##### Write quadratic functions when given real solutions and graphs of their related equations

##### Write equations of quadratic functions given the vertex and another point on the graph, write the equation in vertex form (f(x) = a(x - h)2+ k), and rewrite the equation from vertex form to standard form (f(x) = ax2+ bx + c)

#### Exponential functions and equations. The student applies the mathematical process standards when using properties of exponential functions and their related transformations to write, graph, and represent in multiple ways exponential equations and evaluate, with and without technology, the reasonableness of their solutions. The student formulates statistical relationships and evaluates their reasonableness based on real-world data.

##### Determine the domain and range of exponential functions of the form f(x) = abx and represent the domain and range using inequalities

##### Write exponential functions in the form f(x) = abx (where b is a rational number) to describe problems arising from mathematical and real-world situations, including growth and decay

- How Can You Tell if a Function is Linear or Nonlinear From a Graph?
- How Do You Graph an Exponential Function Using a Table?
- What Do You Do With a Zero Exponent?
- How Can You Tell if a Function is Linear or Nonlinear From a Table?
- What Do You Do With a Negative Exponent?
- What is Exponential Growth?
- What is exponential decay?
- What's an Exponential Function?

##### Interpret the meaning of the values of a and b in exponential functions of the form f(x) = abx in real-world problems

##### Graph exponential functions that model growth and decay and identify key features, including y-intercept and asymptote, in mathematical and real-world problems

#### Quadratic functions and equations. The student applies the mathematical process standards to solve, with and without technology, quadratic equations and evaluate the reasonableness of their solutions. The student formulates statistical relationships and evaluates their reasonableness based on real-world data.

##### Solve quadratic equations having real solutions by factoring, taking square roots, completing the square, and applying the quadratic formula

- What's the Zero Product Property?
- What is the Converse of the Pythagorean Theorem?
- How Do You Use the Square Root Method to Solve a Quadratic Equation with Two Solutions?
- How Do You Solve a Quadratic Equation with Two Solutions by Graphing?
- How Do You Solve a Quadratic Equation by Factoring?
- What is the Quadratic Formula?
- How Do You Solve a Quadratic Equation by Completing the Square?
- What is the Discriminant?
- What is the Pythagorean Theorem?

##### Write, using technology, quadratic functions that provide a reasonable fit to data to estimate solutions and make predictions for real-world problems

#### Linear functions, equations, and inequalities. The student applies the mathematical process standards to formulate statistical relationships and evaluate their reasonableness based on real-world data.

##### Calculate, using technology, the correlation coefficient between two quantitative variables and interpret this quantity as a measure of the strength of the linear association

##### Write, with and without technology, linear functions that provide a reasonable fit to data to estimate solutions and make predictions for real-world problems

##### Compare and contrast association and causation in real-world problems

#### Quadratic functions and equations. The student applies the mathematical process standards when using graphs of quadratic functions and their related transformations to represent in multiple ways and determine, with and without technology, the solutions to equations.

##### Graph quadratic functions on the coordinate plane and use the graph to identify key attributes, if possible, including x-intercept, y-intercept, zeros, maximum value, minimum values, vertex, and the equation of the axis of symmetry

- What is a Quadratic Function?
- How Do You Write a Quadratic Equation in Vertex Form if You Have the Vertex and Another Point?
- How Do You Graph the Parent Quadratic Function y=x2?
- How Do You Graph a Quadratic Function?
- How Do You Use the Square Root Method to Solve a Quadratic Equation with Two Solutions?
- How Do You Solve a Quadratic Equation with Two Solutions by Graphing?
- How Do You Find the Axis of Symmetry for a Quadratic Function?

##### Determine the effects on the graph of the parent function f(x) = x2 when f(x) is replaced by af(x), f(x) + d, f(x - c), f(bx) for specific values of a, b, c, and d

##### Describe the relationship between the linear factors of quadratic expressions and the zeros of their associated quadratic functions

### Texas Geometry Standards

#### Probability. The student uses the process skills to understand probability in real-world situations and how to apply independence and dependence of events.

##### Develop strategies to use permutations and combinations to solve contextual problems

##### Identify whether two events are independent and compute the probability of the two events occurring together with or without replacement

##### Determine probabilities based on area to solve contextual problems

##### Apply independence in contextual problems

##### Apply conditional probability in contextual problems

#### Two-dimensional and three-dimensional figures. The student uses the process skills to recognize characteristics and dimensional changes of two- and three-dimensional figures.

##### Identify the shapes of two-dimensional cross-sections of prisms, pyramids, cylinders, cones, and spheres and identify three-dimensional objects generated by rotations of two-dimensional shapes

##### Determine and describe how changes in the linear dimensions of a shape affect its perimeter, area, surface area, or volume, including proportional and non-proportional dimensional change

- How Do You Find the Volume of a Sphere?
- How Do You Use Similar Figures to Find the Area of a Polygon?
- What is the Relationship Between the Surface Areas of Similar Solids?
- How Do You Find the Lateral and Surface Areas of a Rectangular Prism?
- What is Circumference?
- How Do You Find the Area of a Sector of a Circle?
- What is the Formula for the Area of a Circle?
- How Do You Find the Volume of a Cone?
- How Do You Find the Lateral and Surface Areas of a Cylinder?
- How Do You Find the Lateral and Surface Areas of a Regular Pyramid?
- How Do You Find the Lateral and Surface Areas of a Cone?
- What is a Circle?
- How Do You Find the Surface Area of a Sphere?
- What is the Formula for the Volume of a Pyramid?

#### Circles. The student uses the process skills to understand geometric relationships and apply theorems and equations about circles.

##### Apply theorems about circles, including relationships among angles, radii, chords, tangents, and secants, to solve non-contextual problems

- How Do You Find Missing Measures of Angles in Quadrilaterals Inscribed in Circles?
- How Do You Determine Whether Two Chords are Equidistant From the Center of a Circle?
- How Do You Use Intersecting Chords to Find Arc Measures in a Circle?
- How Do You Find The Measure of an Inscribed Angle When You Know the Measure of the Intercepted Arc?
- How Do You Find the Measure of an Angle Created by Intersecting Chords in a Circle?
- How Do You Determine Whether a Line is Tangent to a Circle?
- What is a Tangent Line to a Circle?

##### Apply the proportional relationship between the measure of the area of a sector of a circle and the area of the circle to solve problems

##### Apply the proportional relationship between the measure of an arc length of a circle and the circumference of the circle to solve problems

##### Show that the equation of a circle with center at the origin and radius r is x2 + y2 = r2 and determine the equation for the graph of a circle with radius r and center (h, k), (x - h)2 + (y - k)2 =r2

#### Coordinate and transformational geometry. The student uses the process skills to generate and describe rigid transformations (translation, reflection, and rotation) and non-rigid transformations (dilations that preserve similarity and reductions and enlargements that do not preserve similarity).

##### Describe and perform transformations of figures in a plane using coordinate notation

- How Do You Use a Graph to Reflect a Figure Over the Y-Axis?
- What is a Translation?
- What is a Rotation?
- How Do You Identify Corresponding Parts in Congruent Triangles?
- How Do You Use a Graph to Translate a Figure Diagonally?
- How Do You Graph a Glide Reflection?
- What is a Reflection?
- How Do You Identify a Similarity Transformation?
- How Do You Make a Figure Larger Using a Dilation?
- What is a Dilation?
- What is a Congruence Transformation, or Isometry?
- How Do You Rotate a Figure 180 Degrees Around the Origin?
- How Do You Identify a Congruence Transformation?

##### Identify the sequence of transformations that will carry a given pre-image onto an image on and off the coordinate plane

- How Do You Identify a Similarity Transformation?
- How Do You Rotate a Figure 180 Degrees Around the Origin?
- How Do You Identify a Congruence Transformation?
- What is a Translation?
- What is a Rotation?
- How Do You Identify Corresponding Parts in Congruent Triangles?
- How Do You Use a Graph to Translate a Figure Diagonally?

##### Determine the image or pre-image of a given two-dimensional figure under a composition of rigid transformations, a composition of non-rigid transformations, and a composition of both, including dilations where the center can be any point in the plane

- How Do You Identify a Congruence Transformation?
- How Do You Make a Figure Larger Using a Dilation?
- What is a Dilation?
- What is a Congruence Transformation, or Isometry?
- How Do You Identify Corresponding Parts in Congruent Triangles?
- How Do You Identify a Similarity Transformation?
- How Do You Graph a Glide Reflection?

##### Identify and distinguish between reflectional and rotational symmetry in a plane figure

#### Two-dimensional and three-dimensional figures. The student uses the process skills in the application of formulas to determine measures of two- and three-dimensional figures.

##### Apply the formula for the area of regular polygons to solve problems using appropriate units of measure

- What is the Formula for the Area of a Triangle Using Sines?
- How Do You Find the Area of a Sector of a Circle?
- What is the Formula for the Area of a Circle?
- What is the Formula for the Area of a Parallelogram?
- How Do You Use Similar Figures to Find the Area of a Polygon?
- How Do You Find the Area of a Regular Polygon When You Know the Length of the Apothem?
- What is the Formula for the Area of a Triangle?

##### Apply the formulas for the total and lateral surface area of three-dimensional figures, including prisms, pyramids, cones, cylinders, spheres, and composite figures, to solve problems using appropriate units of measure

- How Do You Find the Lateral and Surface Areas of a Cylinder?
- How Do You Find the Lateral and Surface Areas of a Regular Pyramid?
- How Do You Find the Lateral and Surface Areas of a Cone?
- How Do You Find the Surface Area of a Sphere?
- How Do You Find the Volume of a Sphere?
- How Do You Find the Lateral and Surface Areas of a Rectangular Prism?

##### Determine the area of composite two-dimensional figures comprised of a combination of triangles, parallelograms, trapezoids, kites, regular polygons, or sectors of circles to solve problems using appropriate units of measure

##### Apply the formulas for the volume of three-dimensional figures, including prisms, pyramids, cones, cylinders, spheres, and composite figures, to solve problems using appropriate units of measure

#### Coordinate and transformational geometry. The student uses the process skills to understand the connections between algebra and geometry and uses the one- and two-dimensional coordinate systems to verify geometric conjectures.

##### Determine the coordinates of a point that is a given fractional distance less than one from one end of a line segment to the other in one- and two-dimensional coordinate systems, including finding the midpoint

##### Determine an equation of a line parallel or perpendicular to a given line that passes through a given point

##### Derive and use the distance, slope, and midpoint formulas to verify geometric relationships, including congruence of segments and parallelism or perpendicularity of pairs of lines

- What Is the Distance Formula?
- How Do You Write the Equation of a Line in Slope-Intercept Form If You Have a Graph?
- How Do You Know if Two Lines are Parallel?
- What is a Circle?
- How Do You Find the Distance Between Two Points?
- How Do You Write a Coordinate Proof?
- What's the Midpoint Formula?
- What are Equilateral, Isosceles, and Scalene Triangles?
- What are Skew Lines?
- What's Slope-Intercept Form of a Linear Equation?
- How Do You Know if Two Lines Are Perpendicular?
- What are Parallel Lines?

#### Logical argument and constructions. The student uses constructions to validate conjectures about geometric figures.

##### Investigate patterns to make conjectures about geometric relationships, including angles formed by parallel lines cut by a transversal, criteria required for triangle congruence, special segments of triangles, diagonals of quadrilaterals, interior and exterior angles of polygons, and special segments and angles of circles choosing from a variety of tools

- How Do You Find Missing Angles in a Triangle With Variables?
- How Do You Determine if Triangles on the Coordinate Plane are Congruent?
- How Do You Use Intersecting Chords to Find Arc Measures in a Circle?
- How Do You Find Missing Angles in a Transversal Diagram?
- How Do You Find the Measure of an Angle Created by Intersecting Chords in a Circle?
- What are Skew Lines?
- What is the Circumcenter of a Triangle?
- What is a Rectangle?
- How Do You Use the Triangle Proportionality Theorem to Find Missing Lengths in a Diagram?
- How Do You Find Missing Angles in an Isosceles Triangle?
- What is a Trapezoid?
- What are Parallel Lines?
- What is the Corresponding Angles Postulate?
- How Do You Find the Sum of the Interior Angles of a Polygon?
- What is Inductive Reasoning?
- What is the Side-Angle-Side Postulate for Triangle Congruence?
- How Do You Use the Diagonals of a Rectangle to Find the Value of a Variable?
- How Do You Find Missing Angles in an Isosceles Triangle Using Right Triangles?
- What is the Incenter of a Triangle?
- What is the Triangle Sum Theorem?
- How Do You Determine Whether Two Chords are Equidistant From the Center of a Circle?

##### Use the constructions of congruent segments, congruent angles, angle bisectors, and perpendicular bisectors to make conjectures about geometric relationships

- What are Supplementary Angles?
- What is the Side-Angle-Side Postulate for Triangle Congruence?
- How Do You Find Missing Angles in an Isosceles Triangle Using Right Triangles?
- How Do You Find a Value for x that Makes Two Lines Parallel?
- What is the Incenter of a Triangle?
- How Do You Determine Whether Two Chords are Equidistant From the Center of a Circle?
- What are Perpendicular Lines?
- How Do You Determine if Triangles on the Coordinate Plane are Congruent?
- How Do You Construct a Perpendicular Bisector?
- What is the Circumcenter of a Triangle?
- What are Vertical Angles?
- How Do You Find Missing Angles in an Isosceles Triangle?
- How Can You Tell if a Point is on the Perpendicular Bisector of a Line Segment?
- What is the Converse of the Corresponding Angles Postulate?

##### Construct congruent segments, congruent angles, a segment bisector, an angle bisector, perpendicular lines, the perpendicular bisector of a line segment, and a line parallel to a given line through a point not on a line using a compass and a straightedge

##### Verify the triangle inequality theorem using constructions and apply the theorem to solve problems

#### Logical argument and constructions. The student uses the process skills with deductive reasoning to understand geometric relationships.

##### Distinguish between undefined terms, definitions, postulates, conjectures, and theorems

##### Verify that a conjecture is false using a counterexample

##### Identify and determine the validity of the converse, inverse, and contrapositive of a conditional statement and recognize the connection between a biconditional statement and a true conditional statement with a true converse

##### Compare geometric relationships between euclidean and spherical geometries, including parallel lines and the sum of the angles in a triangle

#### Proof and congruence. The student uses the process skills with deductive reasoning to prove and apply theorems by using a variety of methods such as coordinate, transformational, and axiomatic and formats such as two-column, paragraph, and flow chart.

##### Verify theorems about angles formed by the intersection of lines and line segments, including vertical angles, and angles formed by parallel lines cut by a transversal and prove equidistance between the endpoints of a segment and points on its perpendicular bisector and apply these relationships to solve problems

- What is a Theorem?
- What is the Corresponding Angles Postulate?
- How Do You Determine Whether Two Chords are Equidistant From the Center of a Circle?
- How Do You Determine Whether a Line is Tangent to a Circle?
- How Do You Write an Indirect Proof?
- What is a Tangent Line to a Circle?
- What is the Circumcenter of a Triangle?
- What are Vertical Angles?
- How Can You Tell if a Point is on the Perpendicular Bisector of a Line Segment?
- What are Skew Lines?
- What is the Converse of the Corresponding Angles Postulate?
- How Do You Use Intersecting Chords to Find Arc Measures in a Circle?
- How Do You Find Missing Angles in a Transversal Diagram?
- What are Supplementary Angles?
- What are Parallel Lines?
- How Do You Find the Measure of an Angle Created by Intersecting Chords in a Circle?
- How Do You Find a Value for x that Makes Two Lines Parallel?
- How Do You Use Parallel and Perpendicular Theorems to Prove a Relationship Between Two Lines?
- What is the Incenter of a Triangle?

##### Apply the definition of congruence, in terms of rigid transformations, to identify congruent figures and their corresponding sides and angles

- What is a Translation?
- What is the Distributive Property?
- What is a Rotation?
- How Do You Use a Graph to Translate a Figure Diagonally?
- How Do You Graph a Glide Reflection?
- How Do You Identify a Congruence Transformation?
- What is the Substitution Property of Equality?
- What is a Congruence Transformation, or Isometry?
- How Do You Rotate a Figure 180 Degrees Around the Origin?
- How Do You Identify Corresponding Parts in Congruent Triangles?

##### Prove two triangles are congruent by applying the side-angle-side, angle-side-angle, side-side-side, angle-angle-side, and hypotenuse-leg congruence conditions

- What are the Legs and Hypotenuse of a Right Triangle?
- How Do You Show that Corresponding Parts of Congruent Triangles are Congruent?
- How Do You Use a Congruence Postulate to Prove Triangles are Congruent?
- How Do You Find Missing Angles in an Isosceles Triangle?
- What is the Substitution Property of Equality?
- How Do You Use the Law of Detachment to Draw a Valid Conclusion?
- What is the Law of Syllogism?
- What is CPCTC?
- What is the Angle-Side-Angle Postulate for Triangle Congruence?
- How Do You Find Missing Angles in an Isosceles Triangle Using Right Triangles?
- What is the Distributive Property?
- How Do You Identify Common Parts in Overlapping Triangles?
- What is the Hypotenuse-Leg Congruence Theorem?
- How Do You Prove that Two Overlapping Triangles are Congruent?

##### Prove a quadrilateral is a parallelogram, rectangle, square, or rhombus using opposite sides, opposite angles, or diagonals and apply these relationships to solve problems

- How Do You Use the Law of Detachment to Draw a Valid Conclusion?
- What is the Law of Syllogism?
- What are Equilateral, Isosceles, and Scalene Triangles?
- What is a Parallelogram?
- What is the Distributive Property?
- How Do You Find the Value for a Variable in the Angles of a Quadrilateral To Make it a Rhombus?
- How Do You Find Values for Variables in the Angles of a Quadrilateral To Make it a Parallelogram?
- What is the Substitution Property of Equality?
- How Do You Find the Distance Between Two Points?

##### Verify theorems about the relationships in triangles, including proof of the pythagorean theorem, the sum of interior angles, base angles of isosceles triangles, midsegments, and medians, and apply these relationships to solve problems

- What is the Hinge Theorem?
- What is a Median of a Triangle?
- How Do You Write a Coordinate Proof?
- What is the Triangle Midsegment Theorem?
- How Do You Find the Sum of the Interior Angles of a Polygon?
- How Do You Use the Diagonals of a Rectangle to Find the Value of a Variable?
- What are Supplementary Angles?
- How Do You Find Missing Angles in an Isosceles Triangle Using Right Triangles?
- What is a 30-60-90 Degree Triangle?
- What is an Angle?
- What are Acute, Obtuse, Right, and Straight Angles?
- How Do You Use the Centroid to Find Segment Lengths in a Triangle?
- How Do You Find the Value for a Variable in the Angles of a Quadrilateral To Make it a Rhombus?
- What is the Triangle Sum Theorem?
- What is the Incenter of a Triangle?
- What is the Substitution Property of Equality?
- What is the Pythagorean Theorem?
- How Do You Find Missing Angles in a Triangle With Variables?
- How Do You Use the Law of Detachment to Draw a Valid Conclusion?
- What is the Law of Syllogism?
- How Do You Use the Hinge Theorem to Compare Side Lengths in Two Triangles?
- What is a 45รยฐ-45รยฐ-90รยฐ Triangle?
- What is a Rectangle?
- What is the Converse of the Pythagorean Theorem?
- How Do You Write an Indirect Proof?
- How Do You Determine Whether a Triangle Can Be Formed Given Three Side Lengths?
- What is the Circumcenter of a Triangle?
- What is the Distributive Property?
- What are Vertical Angles?
- How Do You Find Missing Angles in an Isosceles Triangle?

#### Similarity, proof, and trigonometry. The student uses the process skills to understand and apply relationships in right triangles.

##### Determine the lengths of sides and measures of angles in a right triangle by applying the trigonometric ratios sine, cosine, and tangent to solve problems

##### Apply the relationships in special right triangles 30ยฐ-60ยฐ-90ยฐ and 45ยฐ-45ยฐ-90ยฐ and the pythagorean theorem, including pythagorean triples, to solve problems

- How Do You Find the Area of a Trapezoid?
- What is the Pythagorean Theorem?
- What is the Formula for the Area of a Trapezoid?
- How Do You Find the Area of a Regular Polygon When You Know the Length of the Apothem?
- How Do You Find the Lateral and Surface Areas of a Regular Pyramid?
- What is a 45รยฐ-45รยฐ-90รยฐ Triangle?
- How Do You Find the Lateral and Surface Areas of a Cone?
- What is the Converse of the Pythagorean Theorem?
- How Do You Find the Area of a Sector of a Circle?
- What is the Formula for the Area of a Circle?
- How Do You Determine Whether Two Chords are Equidistant From the Center of a Circle?
- How Do You Determine Whether a Line is Tangent to a Circle?
- What is a Tangent Line to a Circle?
- What is a 30-60-90 Degree Triangle?

#### Similarity, proof, and trigonometry. The student uses the process skills with deductive reasoning to prove and apply theorems by using a variety of methods such as coordinate, transformational, and axiomatic and formats such as two-column, paragraph, and flow chart.

#### Similarity, proof, and trigonometry. The student uses the process skills in applying similarity to solve problems.

### Texas Algebra 2 Standards

#### Exponential and logarithmic functions and equations. The student applies mathematical processes to understand that exponential and logarithmic functions can be used to model situations and solve problems.

##### Determine the effects on the key attributes on the graphs of f(x) = bx and f(x) = logb(x) where b is 2, 10, and e when f(x) is replaced by af(x), f(x) + d, and f(x - c) for specific positive and negative real values of a, c, and d

##### Rewrite exponential equations as their corresponding logarithmic equations and logarithmic equations as their corresponding exponential equations

##### Formulate exponential and logarithmic equations that model real-world situations, including exponential relationships written in recursive notation

##### Determine the reasonableness of a solution to a logarithmic equation

##### Solve exponential equations of the form y = abx where a is a nonzero real number and b is greater than zero and not equal to one and single logarithmic equations having real solutions

#### Systems of equations and inequalities. The student applies mathematical processes to formulate systems of equations and inequalities, use a variety of methods to solve, and analyze reasonableness of solutions.

##### Solve systems of three linear equations in three variables by using gaussian elimination, technology with matrices, and substitution

##### Formulate systems of equations, including systems consisting of three linear equations in three variables and systems consisting of two equations, the first linear and the second quadratic

##### Solve, algebraically, systems of two equations in two variables consisting of a linear equation and a quadratic equation

##### Formulate systems of at least two linear inequalities in two variables

##### Solve systems of two or more linear inequalities in two variables

##### Determine the reasonableness of solutions to systems of a linear equation and a quadratic equation in two variables

##### Determine possible solutions in the solution set of systems of two or more linear inequalities in two variables

#### Attributes of functions and their inverses. The student applies mathematical processes to understand that functions have distinct key attributes and understand the relationship between a function and its inverse.

##### Graph the functions f(x)=โx, f(x)=1/x, f(x)=x3, f(x)= 3โx, f(x)=bx, f(x)=|x|, and f(x)=logb (x) where b is 2, 10, and e, and, when applicable, analyze the key attributes such as domain, range, intercepts, symmetries, asymptotic behavior, and maximum and minimum given an interval

- What is a Natural Logarithm?
- How Do You Convert From Exponential Form to Logarithmic Form?
- How Do You Translate a Function?
- How Do You Graph a Square Root Function Using a Table?
- What is Domain?
- What is an Absolute Value Function?
- How Do You Convert From Exponential Form to Natural Logarithmic Form?
- How Do You Graph the Natural Base Exponential Function?
- What is the Natural Base Exponential Function?
- What is Exponential Growth?
- What Does the Constant 'k' do in y = |x|+k?
- How Do You Graph an Absolute Value Function?
- What's an Exponential Function?
- What is a Logarithm?
- What is a Cubic Function?
- How Do You Find the Degree of a Polynomial?

##### Describe and analyze the relationship between a function and its inverse (quadratic and square root, logarithmic and exponential), including the restriction(s) on domain, which will restrict its range

##### Graph and write the inverse of a function using notation such as f -1 (x)

##### Use the composition of two functions, including the necessary restrictions on the domain, to determine if the functions are inverses of each other

#### Quadratic and square root functions, equations, and inequalities. The student applies mathematical processes to understand that quadratic and square root functions, equations, and quadratic inequalities can be used to model situations, solve problems, and make predictions.

##### Determine the effect on the graph of f(x) = โx when f(x) is replaced by af(x), f(x) + d, f(bx), and f(x - c) for specific positive and negative values of a, b, c, and d

##### Write the equation of a parabola using given attributes, including vertex, focus, directrix, axis of symmetry, and direction of opening

##### Write the quadratic function given three specified points in the plane

##### Formulate quadratic and square root equations using technology given a table of data

##### Transform a quadratic function f(x) = ax2 + bx + c to the form f(x) = a(x - h)2 + k to identify the different attributes of f(x)

##### Solve quadratic and square root equations

- What is the Imaginary Unit i?
- How Do You Convert a Quadratic from Standard Form to Vertex Form by Completing the Square?
- What is the Discriminant?
- How Do You Solve a Quadratic Equation by Using the Quadratic Formula?
- How Do You Add Complex Numbers?
- How Do You Solve a Quadratic Equation with Two Solutions by Graphing?
- How Do You Solve a Quadratic Equation by Completing the Square?
- How Do You Solve a Radical Equation?
- How Do You Solve a Quadratic Equation by Factoring?

##### Solve quadratic inequalities

##### Identify extraneous solutions of square root equations

#### Data. The student applies mathematical processes to analyze data, select appropriate models, write corresponding functions, and make predictions.

##### Analyze data to select the appropriate model from among linear, quadratic, and exponential models

##### Predict and make decisions and critical judgments from a given set of data using linear, quadratic, and exponential models

##### Use regression methods available through technology to write a linear function, a quadratic function, and an exponential function from a given set of data

#### Number and algebraic methods. The student applies mathematical processes to simplify and perform operations on expressions and to solve equations.

##### Determine the quotient of a polynomial of degree three and of degree four when divided by a polynomial of degree one and of degree two

##### Add, subtract, and multiply polynomials

##### Add, subtract, and multiply complex numbers

- How Do You Find All the Rational Zeros of a Polynomial Function?
- What is Exponential Growth?
- How Do You Add Complex Numbers?
- What's an Exponential Function?
- How Do You Solve a Quadratic Equation with Two Solutions by Graphing?
- What's a Function?
- How Do You Graph a Quadratic Function?
- How Do You Solve a Quadratic Equation by Factoring?
- How Do You Graph the Natural Base Exponential Function?
- What is the Natural Base Exponential Function?
- What's the Inverse of a Relation?
- What is a Logarithm?
- How Do You Translate a Function?
- What is the Imaginary Unit i?
- What is the Standard Form of a Quadratic?
- What is Domain?
- What is an Absolute Value Function?
- How Do You Convert From Exponential Form to Logarithmic Form?
- How Can You Tell if a Relation is Not a Function?

##### Determine linear and quadratic factors of a polynomial expression of degree three and of degree four, including factoring the sum and difference of two cubes and factoring by grouping

- What is the Fundamental Theorem of Algebra?
- What is the Factor Theorem?
- How Do You Factor a Polynomial Using Sum of Cubes?
- How Do You Find All the Rational Zeros of a Polynomial Function?
- How Do You Factor a Trinomial?
- How Do You Factor a Polynomial Using the A-C Method?
- How Do You Graph a Square Root Function Using a Table?

##### Determine the linear factors of a polynomial function of degree three and of degree four using algebraic methods

##### Determine the sum, difference, product, and quotient of rational expressions with integral exponents of degree one and of degree two

##### Solve equations involving rational exponents

##### Rewrite radical expressions that contain variables to equivalent forms

#### Cubic, cube root, absolute value and rational functions, equations, and inequalities. The student applies mathematical processes to understand that cubic, cube root, absolute value and rational functions, equations, and inequalities can be used to model situations, solve problems, and make predictions.

##### Analyze the effect on the graphs of f(x) = |x| when f(x) is replaced by af(x), f(bx), f(x-c), and f(x) + d for specific positive and negative real values of a, b, c, and d

##### Analyze the effect on the graphs of f(x) = x3 and f(x) = 3โx when f(x) is replaced by af(x), f(bx), f(x - c), and f(x) + d for specific positive and negative real values of a, b, c, and d

##### Solve absolute value linear equations

##### Solve absolute value linear inequalities

##### Determine the reasonableness of a solution to a rational equation

##### Formulate rational equations that model real-world situations

- How Do You Find the Least Common Denominator of Two Rational Expressions?
- What's the Inverse Variation or Indirect Proportionality Formula?
- How Do You Use the Formula for Inverse Variation to Write an Equation?
- How Do You Solve a Rational Equation by Adding Fractions?
- How Do You Divide Two Polynomials by Factoring and Canceling?
- How Do You Add Two Rational Expressions with Different Denominators?
- How Do You Multiply Two Rational Expressions?
- How Do You Solve a Rational Equation by LCD Multiplication?