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作为一名中学数学教师,难免要做大量的数学习题,这其中有不得而解的困惑,也有经过探索而终得正确结论的喜悦,有些习题设计之精妙和解法之优美更使人领略了数学解题的无穷魅力,下面就是笔者一次深刻的解题经历: 题目 如图1,在棱长为1的正方体
As a middle school mathematics teacher, it is inevitable to do a large number of mathematics problems, among which there are puzzles that cannot be reconciled, and there are also joys after exploration that leads to correct conclusions. The exquisiteness of the design of some exercises and the grace of the solution make people appreciate the mathematics The endless charm of the problem-solving, the following is a profound problem-solving experience of the author: The title is shown in Figure 1, in the prism of length 1