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In this activity, learners create a traditional Mexican noisemaker (a matraca) using cardboard, craft sticks, and a wooden dowel.

In this engineering design challenge, learners animate a facial expression and make a machine (zoetrope) that plays the animation back.

In this activity, learners investigate visual perception as well as plan and conduct their own experiments.

In this math lesson, learners practice estimation and measurement skills as they move from station to station calculating length, volume, weight, and area.

In this activity, learners construct a device that allows them to view 2-D images in 3-D.

In this activity, learners build a figure that moves and "comes to life" when they pull its string.