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Thaumatropes
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In this activity, learners will make a thaumatrope, an old-fashioned optical illusion that dates back to the 1820s.

Size and Distance
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In this activity about depth perception, learners create an optical illusion in a shoe box.

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

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