Second, understand junior high school mathematics teaching concepts, teaching methods, mathematical thinking methods, and so on. Teaching should pay attention to methods, first of all, we must have our own methods. As we all know, math teachers don't just do problems, but teach students to learn, use, think and solve problems.
Third, know the students you teach. Including knowledge base, learning methods, learning habits, ideological status and so on. Know yourself and teach students in accordance with their aptitude. We should not only be in charge of discipline, but also study and committee members!
Fourth, pay attention to every class. Pay attention to every link of lesson preparation, class, homework, evaluation and reflection, carefully design, think carefully, concentrate on research and persist in doing well, and you will succeed.
For your reference. Good luck with your work!