1, head straight: head straight, naturally lean forward, eyes about one foot from the desktop.

2, arms open: arms naturally droop, open left and right, keep a certain distance. Press the paper with your left hand and hold the pen with your right hand.

3, straight: sit steady, shoulders flat, upper body upright, slightly forward, chest off the table with a fist, the whole body should be relaxed and natural.

4, feet flat: feet flat, left and right apart, naturally stable.

Extended data

Harm of incorrect sitting posture:

1. Improper sitting posture may cause ligament strain.

There are many diseases such as cervical spondylosis in modern society. If children don't develop good habits when they are students, it is easy to cause motor dysfunction.

2. Incorrect sitting posture may lead to myopia, strabismus and other problems?

Improper sitting posture, incorrect eye distance or posture will have a great impact on vision, and the problem will become more and more serious with age.

3. Incorrect sitting posture may have a bad influence on physical development.

People sit for a long time in a day, especially students at school. Improper sitting posture will have a bad influence on physical development.