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In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.

In this three-part activity, learners conduct simple experiments to see how light refracts and reflects, and how colors of light affect what we see.

In this activity, learners construct a device that allows them to look over ledges or around corners.

In this activity, learners practice drawing 3D structures in two dimensions. Learners draw cube stacks from five different points of view.