Lifespan

Front 1

Physical development at one to three months

Back 1

raise chin from ground
turn head from side to side
3 mo - play with hands and fingers; move object in hand to mouth

Front 2

physical development 4 to 6 months

Back 2

4mo-roll from abdomen to back
5mo- sit on lap - reach and grasp
6mo

Front 3

physical development 7 to 9 months

Back 3

6 mo- improved coordination;
8-9month- sits alone; begins crawl, creeping
9 - 10 pulls self to standing by using furniture

Front 4

physical development 10 -12 months

Back 4

stands alone, walks with help.
12mo- takes first steps alone

Front 5

physical development 13- 15 months

Back 5

13-14 months - walks alone with wide gait;
15 months - creeps upstairs, scribbles spontaneously; uses cup well