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!

• Definitions of Three-Dimensional Figures

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    What is a Prism?

    The term prism is a cool name for a special kind of three-dimensional solid. This tutorial defines the term prism and shows you how to name a prism using the shape of its bases. Check it out!

• Finding Lateral and Surface Areas

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    How Do You Find the Lateral and Surface Areas of a Rectangular Prism?

    The lateral area of a three-dimensional solid is the area of all the lateral faces. In this tutorial, you'll see how to use the dimensions of a rectangular prism to find the lateral area. Take a look!