Teaching Treasures™


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Back to illusion activity...

Both lines are exactly the same size. Illusions are tricky but not difficult to make. Try drawing this one and show a friend. Also check out the circle illusion if you haven't done so already... back

Illusions can be seen in everyday life situations. Have you ever looked at a window, door or a shed maybe and thought... wow... that is crooked? Your eyes tend to line up the object with something else such as the trees behind the shed or the ground which may not be level. The shed looks to be built on an angle but isn't really. It's a good thing builders use levels to build otherwise we would be all living in very crooked houses and parking our cars in very crooked sheds!

line illusion

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