Developmental Milestones

Can turn head from side to side when prone

1 month

Quiets when hears a voice

1 month

Crying differentiation

2 months

Posterior fontanel closed

2 months

Turns head toward sounds

2 months

Social smile

2 months

Actively holds object; will not reach for it

3 months

Grasp reflex absent

3 months

Notices familiar people and items

3 months

Moro, tonic neck, rooting reflexes have disappeared

4 months

Can sit propped up

4 months

Coos to show pleasure

3 months

Laughs

4 months

Can put things in mouth

4 months

No head lag

5 months

Can roll from from tummy to back

5 months

Grasps objects voluntarily

5 months

Birth weight doubles by

5 months

Roll from back to tummy

6 months

Imitates 1 syllable (ma, da)

6 months

Fears strangers

6 months

Sits, leaning forward on both hands

7 months

Responds to names

7 months

Vowel sounds (mama, dada)

7 months

sits unsupported, begins using pincer grasp

8 months

Responds to "no"

8 months

Releases objects at will

8 months

Creeps on hands and knees (crawls)

9 months

Pulls self to stand holding onto furniture

9 months

Responds to simple commands ("no-no")

9 months

Object permanence

10 months

Says "mama" and "dada" with meaning

10 months

Cruises (walks holding on to something)

11 months

Shakes head for "no"

11 months

Birth weight tripled by

12 months

Birth length increased by 50%

12 months

Babinski reflex absent

12 months

Walks with one hand held

12 month

3-5 words besides "mama, dada"

12 months

2 cube tower

15 months

Walks without assistance (usually since 13 months)

15 months

Creeps up stairs

15 months

Like to throw items on floor

15 months

4-6 words including names

15 months

Temper tantrums

15 months

Anterior fontanel closed

18 months

3-4 cube tower

18 months

Physiologic anorexia

18 months

Talks incessantly (+300 words)

24 months

6-7 cube tower

24 months

2-3 word phrases

24 months

Birth weight quadruple's by

30 months (2 1/2)

Knows own gender

30 months

Rides tricycle

3 years

Parallel + associative play

3 years

Has fears

3 years

Hops on one foot

4 years

Shows off

4 years

Ties shoes

5 years

Eager to please

5 years