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Pocket Protractor
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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.
Globe at Night
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.
Playground Patterns of Cracks
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In this math activity, learners observe and sketch cracking patterns in pavement.