Personalized teaching platform, a variety of interactive teaching methods. Distance education attaches great importance to the communication between learners. Modern means of instant communication make this communication more frequent and convenient. Communication among learners improves the efficiency of learning, and also enables educators to sacrifice the interests of other learners and ignore the needs of some learners, which is more conducive to individualized teaching. At the same time, distance learning is more suitable for the use of multimedia and other teaching methods, and electronic blackboard writing has completely replaced textbooks,