数学符号是数学的语言,是人们进行表达、计算、推理、交流和解决问题的工具,数学符号准确、清晰,具有简约思维、提高效率、便于交流的作用。学习数学的目的之一是使学生懂得符号的意义,会运用符号解决实际问题,发展学生的符号感。因此,我们教师在教育学生发展符号感的同时,还要使学生懂得一些符号的意义。 Mathematical notation is a mathematical language, which is a tool for people to express, calculate, reason, exchange and solve problems. Mathematical symbols are accurate, clear, simple thinking, efficient and easy to communicate. One of the purposes of learning mathematics is to enable students to understand the meaning of symbols, the use of symbols to solve practical problems and develop a sense of symbolism of students. Therefore, we teachers should also make students understand the meaning of some symbols while educating students to develop a sense of symbolism.