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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.

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

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

In this activity, learners investigate visual perception as well as plan and conduct their own experiments.

In this activity, learners explore how their depth perception would be affected if they only had one eye. Learners work in pairs and attempt to drop a penny in a cup with one eye covered.

In this easy demonstration (3rd on the page), learners explore depth perception by conducting a test with two pencils.

These two activities (4th on the page) demonstrate the importance of two eyes in judging depth.

In this quick activity/demonstration (5th on the page), learners explore depth perception.

In this activity, learners use a simple trick of perspective to dress friends in tiny cutout clothing. Learners make tiny pants out of card stock and tape them to the end of a stick.

Closing one eye eliminates one of the clues that your brain uses to judge depth. Trying to perform a simple task with one eye closed demonstrates how much you rely on your depth perception.