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I can't find the thread in which I talked (ranted?) about multiplication tables, so I'll start a new one. This is very, very bad. Bad teacher, no apple! To have memorization trump conceptual understanding is a fundamental failure to understand what mathematics is all about. Besides ... commutitative property of multiplication!!! Even Wolfram Alpha know this.

- mark 1-30-2014 8:08 pm [link] [4 comments]