Answer:
0-3M
Raises head & chest when on stomach
Stretches & kicks on back
Opens and shuts hands
Brings hand to mouth
3-6M
Rolls both ways
Plays with feet and brings feet to mouth when on back
Sits with support
Reaches with either hand
Transfers object from hand to hand
Supports whole weight on legs
Begins to pivot to left and right while on belly
6-9M
Sits and plays with toys
Assumes hands-and-knees position
Gets from sitting to crawling position
Crawls forward on belly
9-12M
Gets to sitting position without help
Pulls self-up to stand
Take steps holding on to furniture
May Stand without support
May take some steps without support
Explanation: