Functionalism: As a special unit, the school performs special social functions. First of all, schools perform the important social function of imparting knowledge to students, which is an important link of social inheritance. Secondly, the school also performs the function of helping students socialize. Students spend half their time at school, interacting with people and learning social rules, all of which are done at school. School is an important place for students to socialize. Finally, the school provides employment opportunities for teachers to help them fulfill their role expectations.

Conflict theory: the school can be said to be a small society, and all kinds of conflicts in society will be reflected in the school. Similarly, the school is also a "safety valve" to ease contradictions and adjust conflicts, which ensures the safety of students and is also very important for students' psychological needs and repression.

Interaction theory: school is the main place for students to contact and communicate with others. Interaction among students, between students and teachers, and between teachers is the main form of interaction in schools. Through interaction with others, students can expand their own network, make friends, learn knowledge and manage their own personality and behavior patterns.