由数学课程的性质决定,练习是全面完成数学教学任务必不可少的重要手段。除了课后作业外,初中数学教学中的课堂练习也是重要组成部分。为了达到既减轻学生负担,又不影响教学实效的目的,用好用活教材例题、突出教学重点和难点、分层练习等是初中数学课堂练习教学的基本要求。 It is decided by the nature of math course that practice is an indispensable and important means to complete math teaching task. In addition to homework, classroom exercises in junior high school mathematics teaching are also an important part. In order to reduce the burden on students, but also does not affect the teaching effectiveness, using examples of live teaching materials, highlighting the teaching of the key and difficult points, such as stratified practice is the basic requirements of junior high school math classroom practice teaching.