数学家乔治·波利亚小时候也有过这样的数学学习经历:一道题,自己怎么想也想不出解法,而老师却给出了一个绝妙的解法.这时候,我们就最想知道“老师是怎么想出这个解法的”.如果这个解法不是很难,我们还会再问“自己完全可以想出,但为什么我没有想到呢”?无论是在学习期间还是在任教期间,波利亚始终不忘研究少年时学数 When mathematician George Borriya also had such a mathematical learning experience as a child: a question, how do you think you can not think of solution, but the teacher gave a wonderful solution. At this time, we most want to know Is how to come up with this solution. “If this solution is not difficult, we will ask:” I can think of it myself, but why did not I think about it? "? Whether during the study or during his tenure, the wave Leah always did not forget to study the number of teenagers