by Julie Glass (Author), Richard Walz (Illustrator)

Recognized as the father of analytic geometry, Ren Descartes was a French mathematician and philosopher. Kids will love this funny and very accessible tale - based on one of math's greatest myths - about the man who popularized the Cartesion system of coordinates.

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Recognized as the father of analytic geometry, Rene Descartes was a French mathematician and philosopher. Kids will love this funny and very accessible tale - based on one of math's greatest myths - about the man who popularized the Cartesion system of coordinates.