问题是数学的心脏,因此采用问题教学法是实施数学新课程的有效途径。问题教学法就是教师通过创设问题情景,引导学生在自主、合作、探究的学习过程中努力地发现问题,提出问题,探寻解决问题的途径和方法,从而完成课堂教学的方法。它以问题引入,以问题归结,又以新的问题把学生引入新的学习, The problem is the heart of mathematics, so the use of problem-based pedagogy is an effective way to implement the new mathematics curriculum. The problem teaching method is that the teacher guides the students to find out the problems, ask questions and explore the ways and methods of solving the problems in order to complete the method of classroom teaching by creating the situation of the problem and guiding the students in the learning process of autonomy, cooperation and inquiry. It introduces the problem, the problem comes down, but also the new problem to introduce students to new learning,