《义务教育数学课程标准》指出:“有效的数学学习活动不能单纯地依赖模仿与记忆,动手实践、自主探索与合作交流是学生学习数学的重要方式。”所以,在数学教学过程中,教师要更新教育教学观念,改变以往被动的教学模式,要充分发挥学生的主体性,使学生逐渐成为课堂的主人。 “Compulsory education mathematics curriculum standards” pointed out: “Effective mathematics learning activities can not simply rely on imitation and memory, hands-on practice, independent exploration and cooperation and exchange is an important way for students to learn mathematics.” Therefore, in the process of mathematics teaching, Teachers should update the concept of education and teaching, change the past passive teaching mode, give full play to students’ subjectivity and make students gradually become the masters of the classroom.