“课堂讨论”是师生的互动,生生的互动,是引导学生主动参与课堂教学实践的主要途径。教师应该克服形式主义,倡导实用主义,精心选择讨论内容,把握好讨论内容的难易度,组织学生在突出重点、突破难点时,在自主操作实践时,寻找问题方法时,知识扩展深化时,适时充分地交流、合作、讨论,从而使学生获得对数学理解的同时,在知识技能、思维能力以及情感态度等多方面得到进步和发展。 “Classroom discussion ” is a teacher-student interaction, interaction between life and life, is to guide students to take the initiative to participate in classroom teaching practice the main way. Teachers should overcome formalism, advocate pragmatism, carefully choose to discuss the content, grasp the difficulty of discussing the content, organize students to highlight the key points, break through the difficulties, in the practice of independent operation, to find the problem method, the deepening of knowledge, Timely and full exchange, cooperation, discussion, so that students gain understanding of mathematics at the same time, in knowledge and skills, thinking skills and emotional attitude, and many other aspects of progress and development.