Professional knowledge preparation: Do more math problems in junior high school, such as the middle school exam. It must be great to be able to do the Olympics. Some problems in junior high school mathematics (especially in grade three) are very difficult, and there is no way to start without inspiration. Even if you graduate from math, it won't help.

Business knowledge preparation: learn junior high school mathematics teaching methods, junior high school mathematics curriculum standards, and learn to write lesson plans. Understand the knowledge structure system of junior high school mathematics and prepare lessons. Learn to use Windows, word, software drawing, and learn to make courseware (Baidu downloads computer use and powerpoint tutorial).

Psychological preparation: in schools with poor students, some students have poor foundations, do not study, and specialize in pranks. Under the high-handed policy of prohibiting corporal punishment, we should learn from experienced teachers, be patient and have methods, which requires long-term practice to form a set of methods to control students.