According to the stage of age, education in different periods is different. In infancy (0-2 years old), exercise is the main thing, and physical maintenance is the main thing. In childhood (2- 12 years old), sensory education is mainly carried out, and children in this period are opposed to reading. Puberty (12- 15 years old) mainly involves intellectual education and labor education. Adolescence (15- 18 years old) is mainly about moral education.