head to toe somekids are slower to milestonesthey should still happen in a specific sequence Physical motor development stand roll sit a crow walk Moving shoulders before fingers mayhappen at different speed jumpers can be limiting to development not putting child down lack of social interaction can play a crucial role in development as they get older can tell a lot about developmental delays Erikson's t Piagets stages easy going When gained control reflexes are lost depression Fisk's naviorsf When you start screening for When help determine if child is dev delayed