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8.68 MB | 3 videos and 5 pages
Color a bird, attach the paper to a pencil or straw, and spin. You'll see the bird in the cage - it's an easy illusion that students will love.
I think of this as simple science. It requires very basic materials (paper, crayons, tape, a pencil or straw), takes just a few minutes, and can easily be extended if students want to draw their own illusions. A page with lines makes this easy to do!
I've included a video that shows you how to make the illusion and two videos of the illusion as it spins - one close to the camera and one farther away. Does the distance make a difference in how well the illusion works? Does it matter if you color it with bright or dark colors? What if you spin it slowly or quickly?
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