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How to hold a pencil
Sit with your feet flat on the floor and with good posture as your write.
Having good posture is important when learning to hold a pencil, as you can injure your back and create bad posture habits over time. Sit in a chair with a straight back and that is short enough for you to place both feet firmly on the floor.
When teaching children to hold a pencil, focusing on the child's posture is important in forming good habits. Use your thumb and index finger to pick up the pencil.