1) Healthy behavior and lifestyle: no spitting or littering; Cover your nose and mouth when coughing or sneezing; Often take a bath, change clothes, wash your hair and cut your nails (including preventing head lice); Do not share towels, toothbrushes and other toiletries (including trachoma prevention); Do not urinate anywhere, wash your hands before and after meals; Correct hand washing methods; Correct sitting, standing and walking posture to prevent abnormal bending of the spine; Correct reading and writing posture; Do eye exercises correctly; Brush your teeth every morning and evening and rinse your mouth after meals; Correct brushing method, choose the right toothbrush and toothpaste; Prevention of dental caries (understand the causes of dental caries, pay attention to oral hygiene and check regularly); Proper drinking water is good for health, and the amount of drinking water every day is appropriate, and drinking boiled water is advocated; Have a good breakfast and have three meals a day regularly; The influence of partial eclipse and picky eaters on health; Drinking milk, beans and bean products regularly is beneficial to growth and health; It is good for health to open the window frequently for ventilation; Civilized toilet, consciously maintain toilet hygiene; Know mosquitoes, flies, mice, cockroaches, etc. It can spread diseases. (2) Disease prevention: Vaccination can prevent some infectious diseases.

(3) Mental health: polite expressions in daily life and skills in getting along with classmates. (4) Growth and development and adolescent health care: the basic knowledge of life gestation and growth, knowing "where I come from".