教学反馈的一个主要渠道是数学练习,而数学练习也是在课堂教学当中不可缺少的,青少年形成认知规律也离不了数学练习的过程。课堂练习是提高课堂效益的一个途径,所以教师不能忽视其重要性。教师在布置课堂练习的时候要考虑好各个学习方面,比如学生的学习水平、教材所学内容、教学过程、作业难度以及作业数量等等,要有针对性的布置多种多样的练习以便于调动学生学习的积极性,激发学生学习的热情。在课堂练习当中慢慢培养学生的认知规律,将教师和学生之间教课和 One of the main channels for teaching feedback is math exercises, and math exercises are also indispensable in classroom teaching. The formation of cognitive rules for adolescents also can not be separated from math exercises. Classroom practice is a way to improve the effectiveness of the classroom, so teachers can not ignore its importance. Teachers in arranging classroom exercises to consider all aspects of learning, such as the level of students’ learning, teaching materials, teaching process, job difficulty and the number of jobs, etc., to be targeted to arrange a wide range of exercises to facilitate the transfer The enthusiasm of students to learn, to stimulate student learning enthusiasm. In the classroom practice slowly develop students’ cognitive rules, teachers and students to teach and