1 month
demonstrates head lag and has a grasp reflex
2 month
lifts head off mattress when prone, holds hand in an open position, grasp reflex fading
3 month
raises head and shoulder off mattress when prone, only slight head lag, no longer has a grasp reflex, keeps hands loosely open
4 month
rolls from back to side, grasps objects with both hands
5 month
rolls from front to back, uses palmar grasp dominantly
6 month
rolls from back to front, holds bottle
7 month
bears full weight on feet; moves objects from hand to hand
8 month
sits unsupported; begins using pincer grasp
9 month
pulls to standing position, creeps on hands and knees instead of crawling; has a crude pincer grasp; dominant hand preference evident
10 month
changes from a prone to a sitting position; grasps rattle by its handle
11 month
cruises or walks while holding onto something, walks with one hand held; places objects into a container, neat pincer grasp
12 month
Sits down from a standing position without assistance; tries to build a 2 block tower without success; can turn pages in a book
15 months
walks without help, creeps upstairs; uses a cup well, builds a tower of 2 blocks
18 months
runs clumsily, falls often, throws a ball overhand, jumps in place with both feet, pulls and pushes toys; manages a spoon without rotation, turns pages in a book (2 or 3 at a time), builds tower of 3-4 blocks
2 years
walks up and downstairs by placing both feet on each step; builds a tower of 6-7 blocks, turns pages of books one at a time
2.5 years
Jumps across the floor and off a chair or step using both feet, stands on one foot momentarily, takes a few steps on tiptoe, draws circles, has good hand-finger
coordination
3 years
rides a tricycle, jumps off bottom step, stands on one foot for a few seconds
4 years
skips and hops on one foot, throws a ball overhead, catches ball reliably
5 years
jumps rope, walks backward with heel to toe, throws and catches a ball with ease