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Highway Seismograph
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This is an activity that models the operation of a seismograph, a tool used to measure the size of earthquakes.
Stride Ruler
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In this activity, learners use their feet to estimate distances. Learners calculate the distance of one step in centimeters by measuring 10 steps at a time to reduce measurement error.
Angle Hunting
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In this activity, learners use a hand-made protractor to measure angles they find in playground equipment.
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.