The outbreak of COVID-19 suddenly broke our quiet life. Such a public crisis event that the whole people pay attention to has brought some tension and anxiety to our lives, and people's lives have undergone many unusual changes because of the epidemic. During the extension of school, teachers should? Stop teaching? For the challenges and changes that the new semester is about to face, make more adequate educational preparation and ability reserve. Influenced by the continuous development of pneumonia in COVID-19, the Ministry of Education issued the Notice on the Extension of the Spring Term in 2020, proposing to use the network platform? Suspension of classes and non-stop learning? Initiative. At present, primary and secondary schools and training institutions all over the country have started vigorous online teaching, such as? Air class? , nailing, cloud class, micro class, live class, etc. Most primary and middle school students have started? Homework class? Mode. ? Suspension of classes and non-stop learning? It is of great significance to ensure the normal education and teaching order, but it also has a series of negative effects in the actual implementation process. ?

This has also triggered new thinking on education. The level of teachers varies greatly and the burden is generally heavy. The first thing to consider in network teaching is the problem of teachers. There are great differences in the level of teachers between urban and rural areas, between schools and between teachers. The level of teachers' information technology ability varies greatly. There are great differences in the information technology level between urban and suburban school teachers, older teachers and younger teachers. Taking a single teacher as a unit, not only can we not carry out high-quality online course teaching, but also bring or intensify new educational contradictions.

In addition, the burden on teachers has generally increased. It is not enough for a teacher to build a high-quality online course. It needs the cooperation of the speaker, teaching assistants and technical teachers, and the synchronous design of children's sign-in, real-time interaction, homework correction and comment after class. All teachers are required to transform into online teachers in a short time, and take into account the work of signing in, correcting comments and epidemic statistics. The workload has generally increased, especially for suburban school teachers with large foreign population, teachers with two children, couples and teachers' families.