Age |
Gross motor skills |
Fine motor skills |
Cognitive, language, and social skills |
1 month |
Head up while prone |
Hands fisted |
Fixes and follows to midline, startles to voice |
2 months |
Chest up while prone |
Hands fisted 50% of the time, grasps a rattle placed in hand |
Follows past midline, regards speaker, social smile, coos |
4 months |
Up on hands in prone, rolls front to back, no head lag |
Keeps hands open, reaches for and retains objects in hand, brings hands to midline |
Orients to voice, laughs, vocalizes when speaker stops talking |
6 months |
Sits unsupported, rolls back to front |
Raking grasp, transfers hand to hand |
Discriminates strangers, consonant babbling |
9 months |
Crawls, pulls to stand, cruises |
Brings 2 toys together, finger feeds |
Plays peek-a-boo, uncovers hidden objects, follows a pointed finger, says “dada” and “mama” indiscriminately, orients to name, understands “no” |
12 months |
Cruises, walks alone |
Mature pincer grasp |
Says “dada” and “mama” appropriately, 1-2 additional words, immature jargoning, follows command with gesture |
15 months |
Walks alone, stoops to pick up a toy, creeps up stairs |
Builds tower of 2 cubes, imitates scribbling, uses a spoon and cup |
3-5-word vocabulary, follows simple commands, names one object, says “no” meaningfully, points to one or two body parts |
18 months |
Throws ball while standing, walks up stairs with support, sits in a chair |
Builds tower of 3-4 cubes, initiates scribbling |
10-25-word vocabulary, mature jargoning, points to three body parts and to self |
24 months |
Jumps in place, kicks ball, throws overhand, walks up and down stairs with support |
Builds tower of 6 cubes, imitates vertical stroke |
50+-word vocabulary, 2-word phrases, uses pronouns, 50% intelligible, follows twostep commands, refers to self by name, points to 6 body parts, parallel play |
3 years |
Pedals a tricycle, alternates feet ascending stairs |
Builds tower of 9 cubes, independent eating, copies a circle, draws 3-part person, unbuttons clothing |
200+-word vocabulary, uses plurals, 75% intelligible, gives full name, knows age and gender, counts to 3, recognizes colors, toilet trained |
4 years |
Alternates feet descending stairs, hops on one foot |
Builds tower of 10 cubes, able to cut and paste, copies a square, buttons clothing, catches a ball |
100% intelligible, uses “I” correctly, dresses and undresses with supervision, knows colors, tells tales, group play |
5 years |
Skips, walks on tiptoes |
Copies a triangle |
2,000+-word vocabulary, identifies coins, names four to five colors, can tell age and birthday |
6 years |
Tandem walk |
Ties shoes, combs hair, copies a diamond |
10,000+-word vocabulary, reads 250 words, knows left vs. right, days of the week, and own telephone number |
7 years |
Rides a bicycle |
Bathes independently |
Tells time to the half hour |
8 years |
Reverse tandem walk |
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Tells time within 5 min, knows months of the year |
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