At home. According to official website, the People's Government of Haixi Prefecture, the Youth Aid Headquarters of Zhejiang Province, built an "air classroom" for Haixi Prefecture by docking high-quality educational resources in Zhejiang Province, making online learning an effective way for Haixi Prefecture's education system to carry out teaching during the epidemic. Zhejiang Wan Peng Education Technology Co., Ltd. made use of advanced information application technology, deep integration of education and teaching, made teaching emergency plans during the epidemic period, and provided free after-school "air classroom" teaching network platform for schools in Haixi. The "classroom in the air" completely simulates the traditional classroom. Teachers teach at designated places or at home through computers or mobile terminals, and students attend classes at home through computers or mobile terminals, which can support Quanzhou teachers and students to carry out online teaching activities at the same time, reduce the large-scale gathering activities of teachers and students, and truly realize "leaving school without leaving teaching, stopping classes without stopping learning".