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Area of Walls
What’s the mistake? How can you help the kid? When you’re done with this post, go check out Mary Dooms’ blog and go follow her on twitter. Thanks for the submission, Mary!
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Sqrt(1) and Right Triangles
This mistake seems ripe for theorizing. Would a kid make this mistake if the hypotenuse was 4 instead of 10?
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A Parallelogram is a Rhombus
These are some “Always, Sometimes, Never” questions. Like, “Is it always, sometimes or never true that a rhombus is a parallelogram.” What’s the fastest way to help these students? (Thanks for the...
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