引言 数学教科书一般都是沿用“提出概念、解释概念、理论推导、举例说明”这种模式。对学生来说,一开始就接触一大堆概念,难免产生枯燥难学的感觉,容易丧失学习的兴趣和信心。如果从具体问题入手,让学生进行思考并提出解决问题的思路,然后教师和学生共同来探讨解决问题的方法,根据问题的需要来提出新的概念,研究各种解决问题的方案。这 Introduction Mathematics textbooks are generally followed the “concept put forward to explain the concept of theoretical deduction, for example,” this model. For students, beginning with a lot of exposure to concepts, it is inevitable that boring feeling, easy to lose interest in learning and confidence. If starting from a specific problem, let the students think and put forward ideas to solve the problem, and then teachers and students to explore ways to solve the problem, according to the needs of the problem to come up with new concepts to study various solutions to the problem. This