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Jul
20
awarded  Teacher
Jul
20
answered Why are the differences between consecutive squares equal to the sequence of odd numbers?
Jul
20
comment How do I cut a square in half?
Wow, looking at the picture, I see that the square is evenly split into the black and white areas. I wasn't convinced at first, but then I printed out the picture and saw that the four black triangles can be 'folded' over to cover the small white square perfectly.
Jul
20
awarded  Scholar
Jul
20
awarded  Supporter
Jul
20
accepted Why is the volume of a sphere $\frac{4}{3}\pi r^3$?
Jul
20
asked Why is the volume of a sphere $\frac{4}{3}\pi r^3$?
Jul
20
revised Do complex numbers really exist?
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Jul
20
comment How do I cut a square in half?
You lost me at that last step. What does the ratio of the diagonals have to do with anything?
Jul
20
awarded  Student
Jul
20
comment How do I cut a square in half?
Really? Why does that work?
Jul
20
comment How do I cut a square in half?
My teacher said no estimating :(
Jul
20
asked How do I cut a square in half?
Jul
20
comment Paradox: increasing sequence that goes to $0$?
It depends on what you mean by paradox. Traditionally, the use has allowed for using 'paradox' to refer to any severe failure of intuition (and I think 'the number of balls in the box depends on how you numbered them' certainly qualifies!)
Jul
20
revised What are some classic fallacious proofs?
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Jul
20
revised What are some good ways to get children excited about math?
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Jul
20
revised Online resources for learning Mathematics
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Jul
20
asked Paradox: increasing sequence that goes to $0$?
Jul
20
revised List of Interesting Math Blogs
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Jul
20
revised List of interesting math podcasts?
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