2. The pen is not standardized.
Correct sitting posture:
Write three ones: one punch, one foot and one inch. A punch is a punch where the chest leaves the table, the eyes are one foot (one elbow) away from the table and the hands are one inch (two fingers wide) away from the pen tip.
The correct posture of holding the pen is: holding it with index finger and thumb; Holding the middle finger, the pen is lying (lying on the tiger's mouth).
There is a formula for holding a pen like this:-two strokes against three sets, flexible fingers, appropriate angle, positive direction and light strokes.
"Touching" means touching the pen with the nail root of the middle finger from bottom to top, leaving the pen one inch long, usually when the pencil sharpener turns out of the conical root.
"Second press" refers to squeezing the pen with your thumb from the inside and your index finger from the outside, and then gently pressing it down to make the thumb and index finger exert force, so that the thumb belly is big and soft, and you can hold it tightly without great effort.
"Three sets" means that the ring finger and the little finger are slightly bent back and forth, and the two fingers are attached to the desktop on the same plane. In addition, the palm side should be attached to the desktop, so that the middle finger and the whole pen are held up to form a stable and vivid pen holding posture.