Under the traditional education mode, the completion of education and teaching must rely on entities such as schools. In the information environment, the education system will no longer be confined to the traditional campus, and traditional schools, online colleges and virtual open universities will become part of the education system. So it used to be physical education class.

Entity education refers to an activity that conforms to a certain social environment and historical process and embodies certain class interests, and is carried out by people with the role of educators in a realistic and concrete environment for those who need to receive education and study.