If you have time you also can teach your son playing chess or weqi,it is very good for thought by heart...,Math is very useful,I know a lot Math students went to other major and being top students....
Thanks,your Method is right for tutoring your son.I think,
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回複:Thanks,your Method is right for tutoring your son.I think,
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01/09/2011 postreply
16:32:52