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In this activity, learners discover that they can modify a regular piece of paper so that it's large enough for them to walk through!

In this activity, learners construct a three-dimensional ambiguous cube to explore visual illusions and how our brains interpret or misinterpret information.

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

In this demonstration, learners attempt to get a large coin through a small hole, the size of a smaller coin.