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In this activity, learners investigate whether more people are squares or rectangles. People with similarly sized heights and arm spans are classified as squares.

In this optics activity, learners conduct an experiment to find out why two eyes are better than one!

In this activity, challenge learners to predict and investigate how many water drops they can fit on one penny.

String Thing is an interactive online game in which learners change a virtual string's tension, length, and gauge to create different musical pitches.