lifts head when prone
2 months
eyes track past midline
2 months
social smile
2 months
alerts to sound
2 months
recognizes parent
2 months
rolls front to back
4 months
grasps a rattle
4 months
laughs
4 months
soothed by parents voice
4 months
orients head to direction of voice
4 months
sits with little or no support
6 months
reaches with one hand
6 months
transfers objects
6 months
babbles
6 months
stranger anxiety
6 months
feeds self
6 months
pulls to stand
9 months
immature pincer grasp
9 months
bangs two objects together
9 months
mama and dada
9 months
waves bye
9 months
gesture games
9 months
stands/walks
12 months
fine pincer grasp
12 months