新课程标准实施以来,“合作学习”已经成为课堂教学中常规性的学习行为方式。合作学习是“个体学习”到“群体学习”的补充,是“师生合作”到“生生合作”的发展。由于小学数学新教材密切联系生活,发散性和开放性使其探 Since the implementation of the new curriculum standards, “cooperative learning” has become a regular learning behavior in classroom teaching. Cooperative learning is the supplement of “individual learning” to “group learning”, which is the development of “teacher-student cooperation” to “life-and-space cooperation”. Due to the close relationship between primary school mathematics textbook life, divergence and openness make it explore