《全日制义务教育数学课程标准(实验稿)》指出:“为了全面了解学生的数学学习历程,激励学生的学习兴趣和改进教师的教学,应建立评价目标多元、评价方法多样的评价体系.”我们知道,数学教学的过程是思维活动的过程,评价是数学教学的重要调控手段,它联系着教师和学生的思维、情感,评价直接影响着学生的心理活动.好的课堂教学评价机制,能激发学生的学习兴趣,启迪其心智,拓展其思维;能激活课 “Full-time compulsory education mathematics curriculum standard (experimental draft)” points out: “In order to fully understand the students’ mathematics learning process, motivate students’ interest in learning and improve teachers’ teaching, we should establish evaluation system with multiple evaluation goals and multiple evaluation methods. ”We know that the process of mathematics teaching is the process of thinking activities, evaluation is an important means of controlling mathematics teaching, it is connected with the thinking and emotions of teachers and students, evaluation directly affects the psychological activities of students. Good classroom teaching evaluation mechanism Can stimulate students’ interest in learning, enlighten their mind, expand their thinking; can activate the lesson