选择适当的时机,引导学生合作学习,对学生理解、掌握数学知识不但能起到事半功倍的作用,而且能培养学生学习数学的兴趣,让他们在轻松愉快的氛围中学好数学.实践表明:在以下几种情况中组织学生进行小组合作学习,将更有利于提高初中数学课堂的有效性.一、当学习内容容易混淆时,组织学生合作学习学生容易混淆的知识点,往往就是学生容易出错的地方. Choose the appropriate time to guide students to learn cooperatively, to understand and master the knowledge of mathematics can not only play a multiplier effect, but also to cultivate students’ interest in learning mathematics, so that they can learn mathematics in a relaxed and happy atmosphere.Practice shows that: in the following Organizational students in several cases to organize group cooperative learning, will be more conducive to improving the effectiveness of junior high school mathematics classroom.First, when the learning content is easy to confuse, organize students to learn students easily confused knowledge points, often is the student error-prone place .