《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习数学的重要方式。随着数学课程改革的不断推进,数学教师的教学观念不断转变,合作学习已经被广大教师所 Mathematical Curriculum Standards states that effective mathematics learning activities can not rely solely on imitation and memory, hands-on practice, independent exploration and cooperation and communication are important ways to learn mathematics. With the continuous advancement of mathematics curriculum reform, the teaching concept of mathematics teachers is constantly changing, cooperative learning has been the majority of teachers