1. Full-time teachers in middle schools refer to full-time teachers who have formal teacher qualifications and are responsible for teaching, scientific research and management. Enjoy the corresponding welfare benefits and pensions.
2. Part-time teachers refer to those who engage in teaching part-time, such as on-campus experts and off-campus teachers, whose positions and benefits are lower than those of full-time teachers.
3. External teachers refer to contract workers who are recruited temporarily, and their contracts will only be terminated after a certain period of time or after completing their tasks.