The operating box is the ap under the umbrella of beijing knowledge impression technology ltd., which digitizes operations, digitizes data into daily teaching scenes and provides mobile operational tools for teachers and students. The workbox provides a whole-of-school k12, a full-scientific operating landscape, and an intelligent educational ecology from tool to content to big data. As of august 2018, the operating boxes had entered more than 70,000 schools in more than 400 municipalities in the 31 provinces and municipalities of the country, and more than 30 million primary and secondary school students and teachers were working with the operating boxes. At the student level, the method of working boxes is to resolve the submission of jobs, to fill out the objective questions directly, to upload the subjective questions, to reduce the burden on the school bags and to completely reduce the phenomenon of "forgotten workbooks", and to make it easier for students to complete the work ...