1. Recruitment Agreement: Before members join the Postgraduate Education Group, they need to sign a recruitment agreement to clarify the rights and obligations of both parties.

2. Service agreement: Before the formal start of teaching service, members need to sign a service agreement to specify the service time, place and task.

3. Termination Agreement: After the teaching service is over, members need to sign the termination agreement, summarize and evaluate the service situation, and determine the follow-up measures.