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I always need more, more, more. As I get into higher-level math, I really need a way to easily generate graphics for my web exercises. In mid-2007, I found out about  GeoGebra . (Take the first three letters of   Geo metry and the last five letters of   al Gebra and put them together.) Dr. Fisher pronounces it like ‘Algebra’ except with a ‘Geo’ at the beginning.