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In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.

free Ages 11 - 14 45 to 60 minutes
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In this activity, learners will build the highest tower they can out of recycled materials.

free Ages 4 - 14 45 to 60 minutes
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In this activity, learners use recycled materials to build a bridge that holds as many potatoes as possible. They investigate weight, height, strength, and measurement as they seek design solutions.

1 cent - $1 per group Ages 6 - 14 45 to 60 minutes
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In this activity, learners discover the importance of maps and scale as they work together to create a map of the classroom.

free Ages 11 - 18 45 to 60 minutes
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In this activity, learners create angle-measuring devices--protractors--out of paper. Learners follow a series of steps to fold a square sheet of paper into a triangular Pocket Protractor.


1 cent - $1 per student Ages 11 - 18 5 to 10 minutes