Related milestones

Starts to move with alternate leg and arm movement, e.g. creeping, crawling

By 9 Months

Observes environment from a variety of positions – while lying on back or tummy, sitting, crawling, and standing with assistance

By 9 Months

Moves from tummy or back into sitting

By 9 Months

Explores and examines an object using both hands and mouth

By 9 Months