This year Arch is using the wonderful, hands-on math program called RightStart Mathematics Geometric Approach. It is an intermediate-level math program which he is using for fifth grade. He loves it.
Last week he was dividing equilateral triangles into even pieces. The book took him to twelvths, then challenged him to do more on his own. He made a large (16") equilateral triangle on paper and divided it into - 1,536 equal pieces!
Tuesday, September 16, 2008
Dividing an Equilateral Triangle
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