新课程改革一直在呼唤一种以尊重学生直接经验,培养学生主动探究意识,发展学生实践能力和创新精神的教学方法。教材作为教学的一种基本载体,当然是教师向学生传授知识的依据,但它那极大的开发空间,为我们数学教学提供了隐型教学弹性设计的可能。叶圣陶曾经说过:“教材只能作为教课的依据,要教好,使学生受益,还要靠教师善于应用。”因为教材上的知识是“死”的,它只是为知识的传递提供了可能。一般的教材限于篇幅,不可能把所有的教学内容都讲得十分详尽,学生往往看到的是思维的结果,而不是知识形成的过程。所以,我们教师要在深入钻研教材的基 The new curriculum reform has been calling for a teaching method that respects the direct experience of students, cultivates the students ’initiative to explore the consciousness, and develops students’ practical ability and innovative spirit. Teaching materials as a basic carrier of teaching, of course, is the basis for teachers to impart knowledge to students, but its great development space for our mathematics teaching provides the possibility of teaching flexible design. Ye Shengtao once said: “The textbook can only serve as the basis for teaching, to teach, to benefit students, but also teachers good at application. ” Because the textbook knowledge is “dead ”, it is only for knowledge The delivery is possible. General textbooks are limited in length, it is impossible to put all the teaching content are very exhaustive, students often see the result of thinking, not the process of knowledge formation. Therefore, we teachers need to delve into the basics of textbooks