波利亚说 :“中学数学教学的首要任务就是加强解题训练 .”数学教学离不开解题 ,解题在建立和发展学生的数学认知结构、形成和提高数学思维能力等方面起着不可替代的作用 .解题是中学数学活动的一个组成部分和主要形式 ,是学习数学课程的一个“实践性”环节 ,解题是实现中学数 Polya said: “The primary task of middle school mathematics teaching is to strengthen the problem-solving training.” Mathematics teaching is inseparable from solving problems. Problem solving plays a role in establishing and developing students’ mathematical cognitive structure, forming and improving mathematical thinking ability, etc. The irreplaceable role. Problem solving is a component and main form of mathematics activity in middle school. It is a “practical” link in learning mathematics. The solution is to realize the number of middle schools.