During the epidemic, many things were disrupted, especially children's study. The school postponed the start of school, and the school organized online teaching. However, carrying out online teaching in an all-round way has brought many troubles to parents and children. Recently, the Ministry of Education issued a document that "it is strictly forbidden to require teachers to broadcast live or record classes". In China, everything doesn't always work. The reason why the Ministry of Education issued a document is not to completely prohibit teachers from broadcasting live classes or recording teaching videos, but to decide according to the actual situation in various places, and not across the board.