《义务教育数学课程标准》指出:应建立评价目标多元、评价方法多样的评价体系。对数学学习的评价要关注学生学习的结果,更要关注他们的学习过程;要关注学生数学学习水平,更要关注他们在数学活动中所表现出来的情感与态度。数学教学必须有学生主体的参与,学生主体的参与离不开学生数学学习的自我审视和自行调控,即在数学学习过程中,少不了学生的自我评价。评价的目的是全面考察学生的学习状况,激励学生的学习热情,促进学生的全面发展。评价也是教师反思和改进教学的有力手段。 “Compulsory education mathematics curriculum standards” pointed out: Should establish a multi-evaluation objectives, evaluation methods and diverse evaluation system. The evaluation of mathematical learning should pay attention to the results of student learning, but also pay attention to their learning process; to pay attention to the level of students’ mathematics learning, but also pay attention to their emotions and attitudes expressed in mathematics activities. The teaching of mathematics must have the participation of the main body of students. The participation of the main body of the students is inseparable from the self-examination and self-regulation of students ’mathematics learning. That is to say, in the process of mathematics learning, the students’ self-evaluation is indispensable. The purpose of evaluation is to comprehensively examine the learning status of students, encourage their enthusiasm for learning and promote the all-round development of students. Evaluation is also a powerful tool for teachers to reflect on and improve their teaching.