In response to the development strategy of the Ministry of Education of "promoting the modernization of education and promoting the leap-forward development of basic education through educational informationization", actively developing modern distance education in primary and secondary schools, promoting educational informationization, providing necessary conditions for the sharing of high-quality educational resources and realizing the "open use" of high-quality educational resources, the joint laboratory of the Institute of Teaching Instruments of the Ministry of Education, the Central Audio-visual Education Center, East China Normal University and Shanghai Huashijing High-tech Co., Ltd. (Huashijing) has specially developed ".