一、调查的缘由在深化课程改革中,学生课业负担过重,已成为备受关注而未能解决好的问题。如何减轻学生的课业负担,保证学生合理的课业量,是值得我们每位一线教师探究的问题。减轻学生的课业负担,并不是说学生负担越轻越好。数学教学活动有它自身的学科特点,课内完成适量的数学书面作业也是师生交流的一个方面。这种无声的交流可以全面地了解学生的数学学习情况,及时有效反馈,激励学生不断学习,帮助学生在自主探 First, the reason for the investigation In deepening the curriculum reform, students overburdened with the course, has become a concern that has not been able to solve the problem. How to alleviate the burden on students ’homework and ensure students’ reasonable amount of homework is a question worth exploring by each front-line teacher. To alleviate the burden on students’ homework does not mean that the students are less burdened, the better. Mathematics teaching activities have its own characteristics of the discipline, class completion of the appropriate number of written assignments is also an aspect of teacher-student exchanges. This silent exchange can comprehensively understand the students’ math learning situation, timely and effective feedback to motivate students to continue learning to help students in their own exploration