The teacher's subjects have changed. According to the inquiry of the teacher qualification examination network, as of July 28, 2023, since the reform of the teacher qualification examination, the subjects of the mathematics teacher qualification examination have also changed accordingly, and the education department no longer specifies the preparation materials. Candidates can only prepare for the exam according to the contents of the exam outline issued by the education department, which greatly increases the difficulty of the exam and greatly reduces the pass rate, so few people apply for the exam.