Legal analysis: it is illegal to open a cram school without permission. The Education Bureau clearly stipulates that in-service teachers can't make up lessons for students privately during the holidays, which means that they can't run cram schools during the summer vacation.

Legal basis: Education Law of the People's Republic of China

Article 75 According to the past situation, all in-service teachers run classes in winter and summer vacations without the approval of the Education Bureau, because teachers have the right to rest and participate in training, and these rights of teachers should be guaranteed during holidays. Therefore, it is basically illegal for in-service teachers to use holidays to run classes, which should be strictly prohibited. What has been done should be banned.

Twenty-fifth in-service teachers' wages during school and holidays shall be paid by the state. Moreover, the state stipulates that the salary of teachers is not lower than that of local civil servants, and the treatment of teachers has been greatly improved at present and will continue to be improved in the future. In-service teachers run classes with compensation, which violates the principle of educational public welfare and the principle that running schools should not be for profit. Teachers should set an example of social morality and law-abiding, and the illegal acts of paid tutoring and paid remedial classes must be corrected.