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In this activity, learners make a device called a phenakistoscope, which displays a continuously looping animation consisting of images drawn onto a spinning disc.

In this activity, learners explore the structural strength of triangles by creating their own free-standing geodesic dome out of plastic straws.

In this activity, learners make their own encrypted code to pass along secret messages using a printable cipher wheel.

In this activity, learners use geometry in observing the shapes and angles soap bubbles create when they join together.