在数学复习教学中,课堂上经常会提问一些数学概念、定理与性质,结果往往是学生回答不出来,或表述不到位,包括班里的一些数学尖子生。我认为其中一个很重要的原因是,长期以来数学教师在备课时已经把教材内容进行了提炼,在课堂上通过自己的语言表达给学生,而大部分学生是被动的接受和理解,学生没有进行课前预习,对数学概念的理解印象不深, In the review of mathematics teaching, the classroom often ask some mathematical concepts, theorems and properties, the result is often not answered by the students, or the expression is not in place, including some of the top class mathematics students. One of the reasons that I think is very important is that for a long time math teachers had already refined the contents of teaching materials during their lesson preparation and expressed them to students in their own language in class. Most of the students were passive to accept and understand that students did not go on Pre-class preview, the concept of mathematical understanding of the impression is not deep,