How big are the classrooms in the university public teaching building, 40 students, 65 students and 70 students? How to design better? Are there any corresponding specifications for multimedia and lecture halls? No matter how many public teaching buildings there are, it is generally best to design them as stepped classrooms, which need to be equipped with: fire-fighting facilities, multimedia projection and receiving media, sound reinforcement equipment, lecture desks and air conditioning. In fact, all universities are not unified. If necessary, I suggest that you can refer to Wuhan University and South China University of Technology, and then consider making a layout that suits you.