Understand the national platform. On the one hand, Zhizhou platform focuses on teaching, so Wang summarized the mathematics course on Zhizhou platform, Zhizhou online course, which is an online course institution focusing on K 12 junior and senior high school subject grading. There are many famous network teachers, such as Young Model Mathematics, Lao Zhou Model Physics, Qin Ge Core English, Luger Simplified Method Chemistry, etc.