In the past, undergraduates were teaching assistants as long as they stayed in school, and they could evaluate lecturers in three to five years. Master students are teaching assistants in the first year and automatically become lecturers in the second year; At present, teachers in colleges and universities generally require doctoral degrees, and masters can only be teachers as experimenters.

Related introduction:

Teaching assistant is the lowest rank of university teachers' titles, and it is the junior title of university teachers and teachers below lecturers. In principle, teaching assistants can't teach alone, or they can't teach all the courses of a subject. They should follow the lecturer or professor to revise their homework and assist them in teaching.

The rank of professional titles from low to high is teaching assistant, lecturer, associate professor and professor.