AP PSYCHOLOGY

Detailed explanation-1: -Infants’ motor development is marked by a series of postural milestones: sitting at approximately 6 months of age, hands-and-knees crawling at 8.5 months, and walking at 12 months (Bayley, 1969; Frankenburg, et al., 1992).

Detailed explanation-2: -At 6 months old, babies will rock back and forth on hands and knees. This is a building block to crawling. As the child rocks, he may start to crawl backward before moving forward. By 9 months old, babies typically creep and crawl.

Detailed explanation-3: -An infant’s physical development begins at the head, then moves to other parts of the body. For example, sucking comes before sitting, which comes before walking. Newborn to 2 months: Can lift and turn their head when lying on their back.

Detailed explanation-4: -Crawling is considered the first form of independent movement. It helps develop and enhance our vestibular/balance system, sensory system, cognition, problem solving skills, and coordination. To help your baby succeed at crawling start with exposing them to tummy time while playing and awake at an early age.