Change the "emergency action" to "constant need"
Since the outbreak of the new crown pneumonia epidemic in early 2020, we, who were once fond of offline traditional teaching, may have been confused, questioned, or even resisted in the face of the sudden arrival of online teaching, but could only accept and conform to the general trend. During this period, many primary and secondary school teachers have gone from passive to conscious, trying to explore a wealth of online teaching models, raising the importance of education informatization from all walks of life, and opening up a new field and space for school education.