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        6-8, 13+

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        Setting Up A Proportion

        In this interactive from APT, learn about ratios and proportional relationships by figuring out the time it takes to charge the battery of an MP3 player and the length of play time. Then, figure out the length of shooting time on a camera. In the accompanying classroom activity, students practice calculating proportions and use language to describe the ratio relationships.

        This resource is part of the Math at the Core: Middle School collection.


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