Peking University Teachers' Teaching Development Center issued the "Training Notice". It mentioned: "Peking University will soon return to normal education and teaching order in the spring semester of 2022, which requires a good teaching preparation for seamless connection between online and offline. The teachers and students of the whole school continued the teaching in the new semester and implemented the online and offline integration system. "

In order to ensure the smooth development of teaching, so that teachers and students at home and abroad who can't go back to school due to the epidemic or the Winter Olympics can attend classes as usual, nearly 300 public classrooms in Peking University continued the 20021spring semester plan, all of which upgraded the ClassIn global teaching and learning integration platform, and organized the "online and offline integrated teaching" training on February 17- 18.