Background Tutorials

• Ratio Definitions

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    What's a Ratio?

    Ratios are everywhere! The scale on a map or blueprint is a ratio. Ingredients sometimes need to be mixed using ratios such as the ratio of water to cement mix when making cement. Watch this tutorial to learn about ratios. Then think of some ratios you've encountered before!

• Frequency Tables and Histograms

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    What is a Frequency Table?

    Frequency tables tell you how often something occurs in a set of data. This tutorial introduces you to frequency tables and shows you some of the ways they can be used to interpret data!

• Equivalent Fractions

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    How Do You Write a Fraction in Simplest Form Using the GCF?

    When you get a fraction as an answer, you're usually asked to write it in its simplest form. This tutorial shows you how to use the GCF of the numerator and denominator to fully simplify a fraction!