I. Normal development of sitting 6.1 months can sit with hand support 7.3 months can let go of the hand to sit for at least 1 minute 8.0 months can sit laterally with hand support (to avoid sudden falls, lateral balance is established) 9.0 months can sit up on their own II. Training methods of sitting Sitting upright and gyration: parents turn the baby’s back to themselves and let them sit on their lap, hands holding the baby’s shoulders or hands, the height of their side of the thigh Up, so that the baby’s body weight occurs, causing the body to gyrate to the opposite side. Bilateral alternation is repeated. Sitting support: Parents turn the baby’s back to themselves and let them sit in front of themselves, slightly separating the baby’s lower limbs (parents can place the baby’s lower limbs under their own lower limbs) and supporting the ground with both hands.