Combined with the characteristics of mathematics, written expression ability refers to the correct writing of problem-solving steps, neat and standardized writing of mathematical symbols, concise and clear writing of some logical reasoning processes, accurate and clear drawing and meeting the requirements. The written expression ability of junior high school mathematics teachers plays a vital role in completing mathematics teaching and cultivating students' good study habits. In order to better complete junior high school mathematics teaching, we must attach great importance to cultivating students' written expression ability. Then, how to cultivate students' writing and expression ability in mathematics teaching? Combined with years of teaching experience and understanding, I think we should start from the following aspects:

Mathematics class is characterized by a certain amount of homework after each class, especially in junior high school, which has a large amount of homework and many times of homework, so it is very important to cultivate students' written expression ability by using homework time. First of all, strict requirements are put forward for the quality of students' homework, and students are given some guidance every time they write homework, and different writing standards are put forward for different problems. For example, for numbers, letters and mathematical symbols (≦√88)

In normal teaching, besides strict requirements for students' homework, students are also strictly required to write papers during the exam, because this is the key for students in the senior high school entrance examination and even the college entrance examination to grasp the marking point and the minimum requirement for teachers to mark papers. Only when the writing is correct and standardized can the marking teacher be clear at a glance. I won't let go of every detail I ask of my students. Every time I take an exam, I will ask my students to write papers. After I finish my papers, I will evaluate them, and judge the good and punish the bad. Under normal circumstances, students attach great importance to exams, but in exams, they often only pay attention to the process of answering questions and ignore the writing of papers. To this end, before each exam, students are repeatedly emphasized on the writing of papers and the drawing standards for solving problems, which is really helpful to cultivate students' written expression ability.

In teaching activities, teachers' words and deeds and every move are often the objects of students' imitation. In the teaching process, teachers' written expression ability has a great influence on students. Therefore, as a math teacher, we must carefully prepare lessons before class and carefully design blackboard books to make these things orderly, standardized and standardized. Let students know the key and difficult knowledge at a glance through the teacher's clear and standardized writing in each class, and have a clear aim at the knowledge system framework of mathematical knowledge, and have more and greater gains. At the same time, teachers should create certain conditions in the classroom for students to perform on the blackboard, and then teachers and students will comment and guide. Doing so will quickly improve students' written expression ability.