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In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.

In this activity, learners construct three optical illusion toys to examine how our brains play tricks on what we see.

Use this activity (13th activity on the page) to introduce learners to the sense of touch. Learners collect objects of varying textures like feathers, rocks, sand, etc.

In this activity, learners make a Benham Top to explore visual illusions and optics.