At present, due to the above technical support and other reasons, people still regard online learning as the continuation of traditional classroom teaching centered on "teachers". Network teaching is just to transfer the traditional classroom teaching to the network intact. In modern distance education, face-to-face teaching is still the main content. A large part of the content of online teaching is the content of traditional teaching materials and classroom handouts. The only difference is that the time and place of the learners' lectures are different.