练习是课堂教学的重要组成部分,是形成和巩固学生数学认知结构的过程,是培养学生数学能力的基本活动形式。教师应从学生实际出发,从生活实际出发,大胆、勤奋地精心设计课堂练习,把数学知识融入学生非常感兴趣的信息、生活领域中去,拓宽学生的解题思路,提高学生的解题能力。 Exercises are an important part of classroom teaching. They are the process of forming and consolidating the cognitive structure of students ’mathematics. They are the basic forms of activities that cultivate students’ mathematical abilities. Teachers should proceed from the actual students, from the reality of life, bold and hardworking carefully designed classroom exercises, the mathematical knowledge into the students are very interested in the information in the field of life to broaden students ’problem-solving ideas and improve students’ problem-solving skills.