Guangdong Zhongshan has established a digital platform for after-school services, selecting training institutions and courses uniformly - the "Course Supermarket" has given us more and better choices. In the past two years, Zhang Dongrui, Vice President of the Zhongshan Weiqi Association in Guangdong Province, feels that "blessings come from heaven": originally, there were only 7 Weiqi training institutions in the city. Since Zhongshan established a digital platform for after-school services, many Go experts from surrounding cities have entered Zhongshan, which has also brought together the association's experts. "There are no geographical restrictions here, and any qualified training institution can apply to join the Zhongshan Municipal Supervision Platform. The access to the campus is also very smooth and transparent, and teachers with high teaching skills have the opportunity to be selected and admitted to the school," said Zhang Dongrui. Since the spring semester of 2022, the Education and Sports Bureau of Zhongshan City has established a digital platform for after-school services, uniformly selecting and introducing non disciplinary education and training institutions, alleviating the problems of insufficient after-school service teachers and curriculum resources on campus. At the same time, strict and standardized management has been carried out in the source of qualifications and teaching processes of relevant institutions, achieving real-time process supervision, promoting orderly competition among institutions, and continuously improving service quality. Practicing basic skills and rehearsing dance... For Feng Danni, a student from Sanmin School in Minmin Town, Zhongshan City, there are more options for after-school service courses this academic year. "Our school is a relatively remote rural school. Previously, some teachers in certain institutions were picky and unwilling to come, and some institutions were not aware of our school's after-school service curriculum needs." Zheng Liu, the vice principal of Sanmin School, metaphorically said that the school's selection of after-school service institutions is like villagers going to small shops to buy things, with fewer types and fewer choices. With the digital platform for after-school services in Zhongshan City, schools are like shopping in a big supermarket, carefully selecting and determining after-school service courses such as hard pen calligraphy, basketball, and dance. According to statistics, the platform has gathered 210 social institutions and 2724 teachers, and can provide over 10000 after-school service courses. "We are striving to create an open and transparent digital platform for after-school services, transforming offline 'one-on-one' communication between schools and institutions into online 'many to many' links, and striving to cut off the chain of interests." Peng Xiaoxin, Secretary of the Education Work Committee of Zhongshan City, Secretary of the Party Group and Director of the Education and Sports Bureau of Zhongshan City, introduced that the school first submits the demand for after-school service courses to the platform, and the platform will randomly assign teachers from different institutions to interview based on a one-to-five ratio. School teachers, family committee representatives, and third-party academic administrators serve as judges, using curriculum teaching ability as the main indicator for selecting institutional teachers. During this process, the school did not directly connect with the institution, and the platform also blocked information such as the affiliation of the interviewing teacher. Competing on the same stage and selecting talented individuals forces institutions to pay more attention to improving the teaching ability of teachers. In the past two years, the platform has helped promote a virtuous cycle of survival of the fittest in the after-school service market in Zhongshan. In order to gradually improve the level of teaching staff and the quality of courses, Zhongshan City has gradually tightened the "entry barrier" through the platform, and gradually increased the admission standards for institutional teacher licenses, teacher certification rates, and so on. The national monitoring platform shows that the certification rate of off campus training institutions in Zhongshan has increased by 60 percentage points compared to before the "double reduction", and the certification rate of non disciplinary institutions has increased by 90 percentage points. Principal, during our tour, we found that the teachers in the martial arts class were quite procrastinating during class,