教学的有效实施依赖于教师对教材的解读与对其文本价值的开发,教材广度与深度的挖掘与组织影响着教学的成败。新课改的深入让我们认识到数学教师应用教材去教数学,而不是教教材上的数学;教师应根据学生的认知发展水平和已有知识经验、学生所处的文化环境和家庭背景及学生思维状 The effective implementation of teaching relies on teachers ’interpretation of teaching materials and the development of their textual value. The excavation and organization of teaching materials’ breadth and depth affect the success or failure of teaching. The new curriculum reform allows us to recognize that mathematics teachers use teaching materials to teach mathematics, rather than teaching mathematics on the textbooks. Teachers should be based on the level of cognitive development of students and existing knowledge and experience, the cultural environment in which students live, and family background and Students think like