Teacher rotation refers to the job rotation or transfer system of teachers between educational institutions or schools. The system aims to promote teachers' professional development, improve the overall teaching quality and provide teachers with broader teaching experience and career development opportunities.

The following are some major introductions of teacher rotation:

Job rotation: Teachers can expand their roles and responsibilities by working in different positions for a period of time, such as serving as class or grade director, teaching and research team leader, school-based curriculum development, etc. This helps to cultivate teachers' management ability, organization ability and leadership ability.

Discipline rotation: Teachers can rotate between teaching posts in different disciplines, such as from math teacher to Chinese teacher or science teacher, to improve their teaching ability and knowledge reserve in multiple disciplines.

Inter-school communication: Teachers can communicate and cooperate with teachers from other schools to share experiences, teaching methods and best practices. This helps to broaden teachers' horizons and gain teaching experience in different schools and environments.

Regional transfer: Teachers can be transferred between schools in different regions, which helps teachers to get in touch with different student groups and educational environments and improve their adaptability and intercultural communication ability.

Teacher rotation can promote the growth and development of teachers and improve the overall teaching quality. At the same time, it will also help the school to operate and manage better, meet the needs of different teachers, and provide more promotion opportunities and career development paths for teachers. Specific rotation plans and policies vary from region to region and schools, and need to be formulated and implemented according to actual conditions.