课堂讨论是学生自主学习的一种重要方式,几乎所有的公开课都会组织课堂讨论.课内时间十分宝贵,怎样才能提高课堂讨论的效益,让课堂讨论更有效?笔者认为因人而异、因“材”而异.课改以来,数学的学习方式不再是单一的、枯燥的、以被动听讲和练习为主的方式.学生有了充分的时间和空间进行数学活动,在合作交流、自主探究的学习气氛中解决问题,用自己原有的知识经验、认知策略建构新知,形成新的知识结构. Class discussion is an important way for students to learn independently, almost all of the open class will be organized in class discussions.Classroom time is very valuable, how can we improve the efficiency of classroom discussions, so that class discussions more effective? Since the curriculum reform, mathematics learning is no longer a single, boring, passive listening and practice-based approach.Students have sufficient time and space for mathematical activities, cooperation and exchange , Explore the learning atmosphere of self-exploration to solve the problem, with their own existing knowledge and experience, cognitive strategies to build new knowledge, the formation of a new knowledge structure.