Here is the next in the series from Stever Strogatz regarding math exploration. He discusses some visual mathematics.
I found myself teaching Isaac to be a good test taker this weekend; however, the same techniques do not necessarily transfer into being an effective problem solver. I ordered several books from the article to maybe point us toward more creative solutions.
His example is solving the sum of consecutive integers. The solution can be seen in the expression n*(n+1)/2. The graphical proof is much more interesting though.
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