When did the national video teaching competition for primary and secondary schools begin?

20 12 September. China Micro-course Competition is a competition under the guidance of the Ministry of Education and sponsored by the Education Management Information Center of the Ministry of Education. At the same time, I hope that the majority of primary and secondary school students, teachers and students in colleges and universities, educational institutions and parents are interested in micro-courses, and the main participants are micro-videos. This contest is a "national excellent teaching case selection activity of Internet application in primary and secondary schools". Micro-course was included in the competition in the fourth selection activity starting from September 20 12.