Larry Wang
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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? edited tags 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? edited tags Jul 20 revised What are some good ways to get children excited about math? edited tags Jul 20 revised Online resources for learning Mathematics edited tags Jul 20 asked Paradox: increasing sequence that goes to $0$? Jul 20 revised List of Interesting Math Blogs edited tags Jul 20 revised List of interesting math podcasts? edited tags