近年来,我国教育界逐步达成了共识:课堂教学是教师和学生共同的生命历程,课堂教学应当焕发生命活力。教师应从生命的高度、用动态生成的观念重新认识数学课堂教学,建立新的课堂教学观。新课程的实施更使老师们紧迫地感到必须对课堂教学进行多角度反思,其中之一便是正确处理预设和生成的关系。 In recent years, the educational circles of our country have gradually reached a consensus that classroom teaching is the common life course of teachers and students, and classroom teaching should be full of vitality. Teachers should re-understand the mathematics classroom teaching from the height of life and use the concept of dynamic generation to establish a new classroom teaching concept. The implementation of the new curriculum also makes teachers feel pressing for a multi-angle reflection on classroom teaching. One of them is to correctly handle the relationship between the preset and the generated.