Changes related to "User talk:Osterman"
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27 August 2016
- (diff | hist) . . Pythagoras; 03:30 . . (+323) . . ELApro (→Quotes about Pythagoras: Flegg, ''Numbers: Their History and Meaning'': games..from the..idea of dots & lines..can be a productive source of teaching material. After all, figurate numbers provided..Pythagoreans..important theorems + minor sort)