《义务教育数学课程标准》指出:“动手实践、自主探索与合作交流是学生学习数学的重要方式……数学学习活动应当是一个生动活泼、主动和富有个性的过程。”所谓数学合作交流,是指同学之间通过听觉、视觉、触觉来接受他人的数学思想,再把自己的数学思想用语言、动作等直观的形式表达出来,从而彼此之间弥补、沟通自己已有的数学知识,在合作交流中学会相互帮助,实现学习互补,增强合作意识,提高交往能力。数学交流是教师和学生的一个互动的过程,利用数学课堂开 Compulsory Education Curriculum Standard states: “Hands-on practice, independent exploration and cooperation and exchange are important ways for students to learn mathematics ... Mathematics learning activities should be a lively, active and individualized process.” The so-called mathematical cooperation and exchange Refers to students ’acceptance of others’ mathematical thinking through auditory, visual, and tactile sensations, and then expressing their mathematical ideas in an intuitive form such as language and action to make up and communicate their existing mathematical knowledge with each other, Learn to help each other in the cooperation and exchange to achieve learning complementary, enhance the sense of cooperation, improve communication skills. Mathematical communication is an interactive process of teachers and students, using mathematical classes to open