1. According to the system: according to the system of teachers' leave for primary and secondary schools, teachers need to go through the leave formalities when they leave due to illness, and submit them to the guidance office for registration and filing, and the director of the guidance office will approve them. Teachers have to go through a series of procedures, including certification, registration, approval and so on.

2. Leave should have sufficient reasons: leave should have sufficient reasons and be approved by the leader before leaving school. In case of special circumstances, those who need to leave school halfway should ask the leader for approval before leaving school. Explain that you can't ask for leave at will, you must have sufficient reasons and the approval of the leader, otherwise it will affect the normal teaching work.