Early childhood education, life education, health education. Nurseries in Los Angeles have different classes according to children's age, intelligence and physical strength. According to the content of education, Los Angeles nurseries are divided into naive education, life education and health education. Educational institutions are boarding preschool educational institutions in the anti-Japanese democratic base areas. To implement the principle of combining education with protection, we should not only keep obese children from getting sick, but also increase their intelligence and improve their living ability.