As a specialized profession, teachers shoulder the mission and responsibility of teaching and educating people. Therefore, the development of teachers' profession must go through special education and training, and it needs a high knowledge reserve and teaching ability. In the process of training, if new teachers want to develop into expert teachers, they have to go through the non-professional stage-professional stage-professional stage.
The sign that teachers enter the stage of specialization is the emergence of normal education. First of all, from a global perspective, normal education began at the end of 17. Father Lhasa founded the first normal school in the world in Reims, France, which became the cradle of human normal education. Secondly, as far as China is concerned, China's higher normal education began in 1897, when Sheng Xuanhuai founded Nanyang Public School in Shanghai, and set up a normal college here to train teachers for other colleges, which was the earliest modern normal education institution in China. At the same time, in 1898, Shi Jing University Hall was established, which marked the beginning of China's "directional" higher normal education system and was also considered as the embryonic form of China's higher normal education system.