Legal analysis: To start a private cram school, you must apply to the local education administrative department for a school license, and the teachers of the cram school need a teacher qualification certificate, which is legal. Of course, if the scale is not large, it can be regarded as a civil contractual relationship is also legal.

Legal basis: Article 75 of the Education Law of the People's Republic of China According to the past situation, all in-service teachers used the winter and summer vacations to run classes 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.