Primary school starts in September 1 last semester. The national primary and secondary school opening day, primary and secondary school opening in autumn is stipulated in September 1. On August 26, 2008, the Ministry of Education issued a special document to inform schools all over the country to organize students and parents to watch this program together, so that 220 million primary and secondary school students across the country can attend this class, which was called the best class in history by the media. After the broadcast of the first lesson of school, it received good social effects and strong social repercussions. The program has been replayed many times on CCTV 1 and CCTV 2, and the first lesson of school has also become a well-known brand. Therefore, September 1 was naturally designated as the national school opening day.