A teacher is a person who teaches culture, songs, opera, martial arts and other skills. According to laws and regulations and industry norms, according to school facilities and personal titles, arrange seats, distribute study materials, prepare lessons and correct homework within the specified time nodes.

Guide and guide students to study, organize lectures and practice, organize examinations, impart basic knowledge of science and culture, conduct academic exchanges, improve students' comprehensive practical abilities such as observation, study, memory and cognition, hands-on communication and operation, cultivate students' special skills, promote all-round development of morality, intelligence, physique, beauty and labor, and master experience and technology.

In social development, teachers are the inheritors and disseminators of human culture and scientific knowledge. For students, it is also the developer of students' intelligence and the shaper of their personality. Therefore, people give people's teachers the lofty title of "Engineer of Human Soul".

In the process of education, teachers play a leading role. He is an educator, leader and organizer of students' physical and mental development. The quality of teachers' work is related to the physical and mental development level of the younger generation and the improvement of national quality, thus affecting the rise and fall of the country.

Since the Ming and Qing Dynasties, teachers have generally been called "Mr.". It was not until the end of 19 and the beginning of the 20th century that He Ziyuan and Qiu, veterans of the Revolution of 1911 and founders of China's modern education, introduced western learning (American education) into China and established new schools, and they clearly defined the title of "teacher" as "teacher" in the Code of Conduct for Students.