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Predict the correct amount of roofing material needed to reroof a house while learning about the importance of proper planning. This interactive exercise focuses on measurement, calculating the area of trapezoids, and combining the areas with the roofing information provided to take math out of the classroom and into the real world.

This media asset was adapted from "My Uncle's House" by the Wisconsin Online Resource Center.

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© 2015 PBS & WGBH Educational Foundation. All rights reserved.

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