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放缩法证明不等式是高中数学的难点,在近年的高考题中或多或少有所体现,所以不少高三教师在复习课教学过程中加大了讲解力度,但一般学生遇到这样的题总是感到困难. 笔者在最近的一次作业题中却充分感受到了学生的发散性思维带来的全新视角,他们思维中生动的创造力让我欣喜万分.下面就学生的几种解法让大家来一起分享这种快乐.
The shrinking method proves that the inequality is a difficult point in high school mathematics. It has been more or less reflected in recent college entrance examination questions. Therefore, many senior high school teachers intensified their explanations during the review class teaching process, but the average student encountered such a problem. Always feel difficult. The author has fully felt the new perspective brought by students’ divergent thinking in the recent assignment. The vivid creativity in their thinking made me very happy. Here are some solutions for students to let everyone come. Share this happiness together.