Polya's "How to solve it" is pretty good in that respect. I asked this question on math.stackexchange.com a while ago but haven't received many answers yet htt

Polya's "How to solve it" is pretty good in that respect. I asked this question on math.stackexchange.com a while ago but haven't received many answers yet http://math.stackexchange.com/questions/1040232/can-you-recommend-a-book-to-learn-to-teach-math-to-a-child http://math.stackexchange.com/questions/1040232/can-you-reco...