回复：我该对这个数学老师失望，还是对自己儿子失望

来源: gracelie 于 2014-04-16 10:00:32 [] [旧帖] [给我悄悄话] 阅读数 : (107 bytes)

Are you in US? My son is in 2nd grade and already learned mutiplication and division, also fraction.

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