波利亚曾说:“没有一道题可以解决得十全十美,总剩下一些工作要做,经过充分的探讨与研究,总会有点滴的发现,总能改进这个解答,而且在任何情况下,我们都能提高对这个解答的理解水平。”典型例题作为数学课堂内容的主要组成,其优劣对教学的成功与否至关重要,因此我们要深入挖掘、研究典型例题并用好它。一、典型例题挖掘、研究的重要性典型例题是教师讲课时用于阐明数学概念、数学命题及其初步应用的题目,它具有一定的代表 Poliya once said: “There is always no solution to the problem that there is no problem to be solved. There is always some work to be done. After thorough exploration and research, there will always be a bit of discovery that can always improve the solution. In any case, We can all raise the level of understanding of this solution. ”" The typical examples, as the main components of the content of the math class, are of crucial importance to the success of teaching. Therefore, we must dig deeper and study typical examples and make good use of it. First, the typical examples of mining, the importance of research Typical examples are lectures teachers use to elucidate the concept of mathematics, mathematical proposition and its initial application of the topic, it has a certain representation