### Popular Tutorials in Grade 3

#### What's the Formula for the Perimeter of a Rectangle?

What is the formula for the perimeter of a rectangle? This tutorial shows you how to find that formula!

#### How Do You Find the Perimeter of a Shape?

Ever had someone come up to you on the street, hand you a shape, and ask you to find the perimeter of that shape? Watch this tutorial, and next time that happens you'll be ready!

#### What is the Commutative Property of Addition?

When you're adding numbers together, does their order matter? This tutorial can answer that question! It looks at the Commutative Property of Addition!

#### What is the Commutative Property of Multiplication?

When you're multiplying numbers, the Commutative Property of Multiplication can be very useful! This tutorial introduces this handy property and shows you how to use it.

#### What is Place Value for Whole Numbers?

Place value is a building block of numbers. Without place value, we couldn't keep all our numbers straight! This tutorial introduces place value and shows you the parts of a place value chart.

#### What is an Open Sentence?

Understanding open sentences is a stepping stone for understanding more complex math problems. This tutorials introduces open sentences and gives you an example of how to solve one!

#### Which Operations Do You Do First in an Expression?

You can't simplify a problem without the order of operations. In this tutorial, you'll learn about this special order and see how to use it to solve a problem!

#### How Can You Distribute Numbers When You're Adding and Multiplying?

You can use the distributive property to help you add and multiply numbers! Follow along with this tutorial to see the uses of the distributive property.

#### How Do You Measure an Object in Inches Using a Ruler?

Measuring is a building block of math and understanding the world around us. This tutorial shows you how to measure an object in inches using a ruler.

#### What are the Metric Units of Mass?

Milligrams and grams are two of the common metric units used to measure the mass of an object. In this tutorial, you'll learn about the metric units used to measure mass!

#### What are the Metric Units of Capacity?

A liter is a metric unit used to measure the capacity of an object, but there are other metric units that can also be used! This tutorial introduces the metric units for capacity.

#### How Do You Find the Perimeter of a Rectangle?

Finding the perimeter of a rectangle is as easy as adding up all its side lengths! This tutorial takes you through the steps needed to find the perimeter of a rectangle.

#### What is Area?

Area is the amount of space a figure takes up! This tutorial introduces area and explains how we find the area of a figure.

#### What is Division?

Division is a stepping stone of math! In this tutorial, you'll see how cookies can help you find the answer to division problems!

#### How Do You Classify Quadrilaterals?

Got a figure with four sides? Then you have a quadrilateral! But there are many special types of quadrilateral. Follow along as this tutorial shows you how to figure out the possible names for a given quadrilateral!

#### What is a Rectangle?

A rectangle is one of the many fundamental shapes you'll see in math. Rectangles have special properties that can be very useful in helping you solve a problem. This tutorial introduces you to rectangles and explains their interesting qualities!