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In this activity, learners build a recording timer made from simple materials (e.g., small dc motor, sharpie pen, craft sticks, adding machine paper tape, etc.).

In this math lesson, learners estimate distances between landmarks and use a map and scales to determine the actual distances.

In this seismic simulation, learners play a "who-dunnit" game to explore earthquakes.

In this engineering activity, learners examine bicycle mechanics and gear ratios. Learners determine which gears will help them bike a set course in the shortest amount of time.