Students are the main body of learning, and any teaching means must play a role through students. This factor mainly affects the process of learning and teaching from two aspects. The first is group differences, including age, gender and social and cultural differences. Second, individual differences, including previous differences in knowledge base, learning style, intelligence level, interests and needs. These two aspects are the main categories of educational psychology research.

In the process of education, students are the main body of the learning process, but this does not deny the guiding position of teachers to students. Learning education needs to organize teaching most effectively according to specific teaching objectives, and teachers play a key role in it. Teachers mainly involve professional quality, professional knowledge, professional skills and teaching style. This is also the main problem of teachers' psychological research.

Teaching environment

Teaching environment includes material environment and social environment. The former involves classroom natural conditions (such as temperature and light), teaching facilities (such as desks and chairs, blackboards) and space arrangement (such as seating arrangement), while the latter involves classroom discipline, classroom atmosphere, teacher-student relationship, classmate relationship, school spirit and social and cultural background.

Teaching environment affects students' learning process and methods, teaching methods and teaching organization. Therefore, teaching environment is not only the main category of classroom management research, but also an important content that can not be ignored in learning process research and teaching design research.