Infant, Toddler, Pre-K Developmental Milestones

Newborn reflexes present

1 month

Turns head slowly side to side

1 month

Startles to loud noise

1 month

Fixes gaze on object 12-24 inches

1 month

Gains 5-7 ounces weekly

birth - 6 months

Posterior fontanelle closes at 8 weeks

2 months

Social smile

2 months

Vocalizes, laughs, coos

3 months

Opens and closes hand

3 months

No head lag when pulled to sitting

4 months

Bites and chews

4 months

First foods if formula fed

4 months

Most primitive reflexes gone

4 months

Rolls front to back

4 months

Babbling (ba ba, da da)

6 months

Rolls back to front

6 months

Doubles birth weight, gains 3-4 ounces weekly

6 months

First tooth eruption

6 months

Sits with assistance (propped)

6 months

First foods if breastfed

6 months

Stranger anxiety begins

8 months

Sits without assistance

8 months

Transfers objects between hands

8 months

Waves Bye Bye

9 months

Object permanence

9 months

Pincer grasp

9 months

Pulls to stand & cruises

10 months

Loses Babinski reflex

12 months

3-5 words with meaning

12 months

Follows simple verbal commands

12 months

Walks a few steps

12 months

Birth weight triples

12 months

Switch to cow's milk,

encourage continued

breastfeeding

12 months

Holds spoon or crayon

12 months

Hand dominance

12 months

Uses 6 words

15 months

Scribbles on page, holds with fist

15 months

Walks well

15 months

Builds tower of 2 cubes

18 months

Uses 10 words

18 months

Runs, falls easily

18 months

Can use spoon and cup alone

24 months

2 word sentences

24 months

Walk up stairs with help

24 months

Gain 4-6 pounds/yr

24 months

Grow 3 inches/yr

24 months

Throws ball overhand

36 months

Gain 4 pounds/yr

36 months

Grow 2 inches/yr

36 months

Rides tricycle

36 months

Toilet trained bowel & bladder (daytime)

36 months

Kicks ball

36 months

Holds crayon with FINGERS

36 months

Dress without help

4 years

Copy circle

4 years

Hops with both feet

4 years

Speech all understandable

4 years

Obeys prepositional phrases

4 years

Uses scissors

4 years

Balances on each foot well

5 years

Ties shoes

5 years

Prints some letters

5 years

Proper articulation of vowels & consonants

6 years

Knows left from right

6 years