Tianjin Normal University belongs to a college. Of course, it also has two majors, but both of them are relatively few. The three majors you mentioned are all normal majors. You don't have to teach in Sichuan after graduation. There is no limit. If the employment prospects are good, it is best to find jobs in mathematics and applied mathematics. Tianjin Normal University is well-known and one of the popular universities for candidates to apply for. Try to avoid popular majors when applying for the exam to ensure your success.