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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.
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.
Angle Hunting
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In this activity, learners use a hand-made protractor to measure angles they find in playground equipment.
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.
Eyedropper Hydrometer: Buoy your understanding of density
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Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.
Playground Patterns of Cracks
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In this math activity, learners observe and sketch cracking patterns in pavement.
Percentage of Oxygen in the Air
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In this activity, learners calculate the percentage of oxygen in the atmosphere by using steel wool's ability to rust.