课堂练习是数学教学的一个重要环节,是学生运用已学过的数学知识来巩固概念和形成技巧的重要手段。学生通过课堂练习得到思维、品格、身心的发展;教师通过课堂练习可以获得反馈信息,检验学生学习数学的能力,评价教与学的水平。 Classroom practice is an important part of mathematics teaching. It is an important means for students to consolidate concepts and form skills by using the learned math. Students get thinking, character, physical and mental development through classroom exercises; teachers can obtain feedback information through classroom exercises, test students’ ability to learn mathematics, and evaluate the level of teaching and learning.