质量和效率是小学数学课堂的生命。通过课堂教学实效性的落实使每个学生在每节课上有所得、有收获,为学生和谐、全面、可持续发展注入后劲。《新课程标准》指出:“动手实践、自主探索与交流合作是学生学习数学的重要方式。”合作交流是否灵动有效将直接影响到课堂效率,笔者 Quality and efficiency are the lives of elementary mathematics classes. Through the implementation of the effectiveness of classroom teaching so that each student in each class have income, gain, for students harmonious, comprehensive, sustainable development into the stamina. The New Curriculum Standard states: “Hands-on practice, self-exploration and exchange and cooperation are important ways in which students can learn math.” Whether the cooperation and exchange can be effective or not will directly affect the efficiency of the classroom.