数学交流 ,是运用表达数学概念、关系、方法、问题、思想的语言与情感的过程 .从数学的社会性来讲 ,数学思想只有被“数学共同体”所接受才能算是正确的 .因此 ,在数学教学中 ,为了对数学知识作出解释 ,教师必须用数学语言符号 ,同时学生也必须理解这些语言符号 ,于是就存在一 Mathematical communication is the process of using language and emotion to express mathematical concepts, relationships, methods, problems, and ideas. In terms of the social nature of mathematics, mathematical thinking can only be considered correct if it is accepted by the “community of mathematics.” Therefore, in mathematics In teaching, in order to explain mathematical knowledge, teachers must use mathematical language symbols, and students must also understand these language symbols.