I answered Q2 upstairs, please grade. :)

来源: Kamioka 于 2012-04-12 10:52:55 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读： 次 (281 bytes)

when I first started teaching and students asked me how I got the answers, I told them I looked at the problem and the answer is obvious. After a few complaints and rolled eyes, I began to try to baby step my thinking in the way they can understand and now got rave reviews.

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