The essence of education is to cultivate people's purposeful social activities. Education plays an extremely important role in social and economic system, productivity level, science and technology and cultural tradition. Education in a broad sense includes social education, community education, school education and family education, and school education plays a leading role in human development. Teachers should cultivate students' all-round development in morality, intelligence, physique, beauty and labor, and pay equal attention to five educations, so that children can become useful people to society under the guidance of education.