随着新课程改革的不断深入,广大教师越来越重视以学生为主体的主动发展、个性发展,因此也就十分关注教学过程中突显学生为主体的动态生成了。我个人认为课堂教学既要有预设又要有生成,没有预设即课前的精心准备——备课,课堂上就毫无章法;没有生成,再好的预设也是无用武之地,学生就不能活学活用,也就失去了教学的最终意义。于是,如何处理好预设与生成的辩证关系,就成为新课程背景下数学课堂教学急待解决的实际问题,这里,我尝试 With the deepening of the reform of the new curriculum, the majority of teachers pay more and more attention to the initiative development and personality development with students as the main body. Therefore, they are also very concerned about the dynamic generation of students who highlight the students in the teaching process. I personally think that classroom teaching must have both pre-set and build, there is no preset that pre-class carefully prepared - preparing lessons, no rules in the classroom; no generation, no matter how good the default is useless, students Can not learn to use, it will lose the ultimate meaning of teaching. So, how to deal with the dialectical relationship between presupposition and generation has become an urgent problem to be solved in mathematics classroom teaching under the background of new curriculum. Here, I try