This page is dedicated to serving as a comprehensive guide that can be used as a quick reference for consulting pediatric developmental milestones. It is organized by child age, and is then further divided into subsections that characterize the types of behaviors/actions the child should be able to complete.
2 MONTH OLD
Language: cooing, turns head toward sounds
Social/cognitive: starts to smile at people, begins to recognize faces.
Gross motor: can hold head up. Can push up when lying on stomach.
4 MONTH OLD
Language: laughs, turns to voice
Social/cognitive: enjoys looking around
Gross motor: sits with drunk support, begins rolling
6 MONTH OLD
Language: responds to name, babbles
Social/cognitive: stranger anxiety develops
Gross motor: can sit momentarily propped on hands (sits unsupported at 7 months)
Fine motor: Can transfer objects from one hand to another.
9 MONTH OLD
Language: Says “dada” and “mama”
Social/cognitive: waves “bye”, can play pat-a-cake
Gross motor: pulls to stand, cruises
Fine motor: 3 finger pincher grasp, can hold bottle/cup
12 MONTH OLD
Language: says first words (other then mama/dada)
Social/cognitive: develops separation anxiety, follows 1-step commands with gesture, comes when called
Gross motor: Stands well, walks first steps independently, throws ball
Fine motor: 2 finger pincer grasp
18 MONTH OLD
Language: 10-25 word vocabulary, identifies 1 or more body parts
Social/cognitive: Understands concept of “mine”, begins pretend play
Gross motor: runs, kicks ball
Fine motor: copies a circle, uses utensils
2 YEAR OLD
Language: children at this age should have a vocabulary of ~50-200 words and should be able to use 2-word phrases.
Social/cognitive: follows 2-step commands, engages in parallel play, begins toilet-training.
Gross motor: can walk up/down stairs with both feet on each step. Can jump.
Fine motor: builds 6-cube tower, copies a line, turns book pages
3 YEAR OLD
Page Updated: 06.19.2016