2011年9月,本人有幸参加了我市初中青年数学教师解题基本功大赛的阅卷活动,阅卷结束后,本人细细地翻看了其中3本(90份)试卷,发现其中一道题,有30多位老师的解法过程繁杂,耗时过多,分数普遍不高;也有少部分教师解法简单,想法自然,得分较高.悉心研究他们的解法,笔者感觉到很多老师在不知不觉中被“数学模型”束缚了思维、出现思维定势的 In September 2011, I was fortunate enough to participate in the scoring activity of the junior high school young maths teacher’s basic skills contest. After the marking was over, I carefully looked at three of the 90 papers and found that there was 30 Many teachers solve the process of complicated, time-consuming too much, the scores are generally not high; there are a small number of teachers solution simple, natural ideas, scored higher. Careful study of their solutions, I feel many teachers unconsciously be “Mathematical model” tied the mind, there is the mind set