在平时的教学中,这样的情况不难遇到:“老师,这道题有没有简单的方法,我做这道题花了很长时间才算出结果,可结果还是错的.”“老师,你是怎么想到这种解法的啊,我怎么想不到啊?”“你真聪明,这方法简单,这你都想的出来.”其实所谓的好方法、巧解的背后,无不是经过一段苦苦探索的过程,很多的解法都是在通性解法的基础上不断改进而得出来的.很多时候巧解是由解题后的反思所得到,并非一开始就知道巧解.本 In normal teaching, this situation is not difficult to encounter: “Teacher, this question is not a simple method, I do this problem took a long time to calculate the result, the result is still wrong.” “Teacher, how do you think of this solution ah, how can I think ah?” “You are so smart, this method is simple, you want to come out.” In fact, the so-called good way, cleverly behind, Nothing is not through a period of painstaking exploration process, many solutions are based on the method of continuous improvement derived from the solution.Many times the solution is obtained after the solution of the reflection, not from the outset to know the clever solution .this