《怎样解题》《How to Solve it》精华------------G.波利亚
2008-10-07 14:02
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第一步:你必须弄清问题。1.已知是什么?未知是什么?要确定未知数,条件是否充分?2.画张图,将已知标上。3.引入适当的符号。4.把条件的各个部分分开。第二步:找出已知与未知的联系。1.你能否转化成一个相似的、熟悉的问题?2.你能否用自己的语言重新叙述这个问题?3.回到定义去。4.你能否解决问题的一部分?5.你是否利用了所有的条件?第三步:写出你的想法。1.勇敢地写出你的方法。2.你能否说出你所写的每一步的理由?第四步:回顾。1.你能否一眼就看出结论?2.你能否用别的方法导出这个结论?3.你能否把这个题目或这种方法用于解决其他的问题?
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