IDOB

Developmental Observations

Developmental observations are discrete descriptions of behaviors or skills that are progressively acquired across development. In this database, each observation has been mapped to one or more milestones derived from four commonly used milestones checklists. While observations themselves are not associated with an age at which they should be met, the ages associated with each milestone are provided.

ObservationConnected milestonesExpected ages
Briefly looks at objects 1 0 mos.
Calms to caregiver’s voice 1 0 mos.
Can sleep 4-5 hours at night 1 0 mos.
Communicates needs through behaviors 1 0 mos.
Follows face 4 0 – 2 mos.
Has an undifferentiated cry 1 0 mos.
Has periods of wakefulness 2 0 mos.
Is able to suck, swallow, and breathe 1 0 mos.
Is responsive to calming actions when upset 2 0 – 1 mos.
Moves head from side to side while lying on stomach 2 0 – 1 mos.
Moves in response to auditory stimuli 1 0 mos.
Moves in response to visual stimuli 1 0 mos.
Prefers to look faces when presented at close distances 4 0 – 2 mos.
Responsive to parent's touch 1 0 mos.
Responsive to parent's voice 1 0 mos.
Scans surroundings without focus on anything in particular 1 0 mos.
Strong reflex movements (eg. sucks, startles to sound, palmer grasp) 2 0 – 1 mos.
Alerts to sound 2 1 – 2 mos.
Alerts to voice 2 1 – 2 mos.
Avoids bitter or acidic smells 1 1 mos.
Brings hand close to face 2 1 mos.
Chest up in prone position 4 1 – 3 mos.
Chin up in prone position 1 1 mos.
Cries because of distress 1 1 mos.
Dislikes rough or abrupt handling 1 1 mos.
Eyes wander and occasionally cross 1 1 mos.
Focuses 8 to 12 inches (20.3 to 30.4 cm) away 1 1 mos.
Head flops backward if unsupported 1 1 mos.
Hearing is fully mature 1 1 mos.
Keeps hands in tight fists 2 1 mos.
Makes jerky, quivering arm thrusts 1 1 mos.
Makes throaty noises 2 1 – 2 mos.
Preferentially gazes at black/white objects 2 1 mos.
Prefers soft to coarse sensations 1 1 mos.
Prefers sweet smells 1 1 mos.
Reciprocal (social) smile 3 1 – 3 mos.
Recognize some sounds (like parent's voice) 3 1 mos.
Recognizes the scent of mother’s breastmilk 1 1 mos.
Smiles sponatneously 3 1 – 4 mos.
Startles to sound 1 1 mos.
Startles to voice 1 1 mos.
Sucks breast or bottle well 1 1 mos.
Turns head in supine position 1 1 mos.
Turns head toward direction of sound 4 1 – 4 mos.
Acts bored 2 2 mos.
Can briefly calm himself 2 2 mos.
Coos, making vowel like noises 4 2 mos.
Follows large, highly contrasting objects 2 2 mos.
Hands unfisted 50% 3 2 – 3 mos.
Has clear behaviors to indicate needs for food, sleep, play, comforting 1 2 mos.
Head bobs when held in sitting position 1 2 mos.
Holds hands together 2 2 – 5 mos.
Holds head steady, unsupported 2 2 – 4 mos.
Makes smoother movements with arms and legs 1 2 mos.
Opens mouth at sight of bottle 1 2 mos.
Opens mouth at sight of breast 1 2 mos.
Recognize people at distance 2 2 – 4 mos.
Recognizes primary caregiver 1 2 mos.
Retains rattle if placed in hand 2 2 – 4 mos.
Shows diminishing newborn reflexes 1 2 mos.
Shows symmetrical movements of head, arms, and legs 1 2 mos.
Smiles at people 3 2 – 4 mos.
Sometimes cries in different ways to show hunger, pain, or being tired 2 2 – 4 mos.
Supports upper body with arms when lying on stomach 4 2 – 4 mos.
Tries to look at caregiver 2 2 mos.
Visual threat reflex present 1 2 mos.
Babbles 2 3 – 4 mos.
Bats at objects 3 3 – 4 mos.
Becomes more expressive with face and body 1 3 mos.
Brings hands to mouth 3 3 – 4 mos.
Chuckles 1 3 mos.
Copies some facial expressions 2 3 – 4 mos.
Copies some movements 2 3 – 4 mos.
Copies sounds 3 3 – 9 mos.
Expression of disgust at sour taste 1 3 mos.
Follows objects in circle in supine position 1 3 mos.
Follows objects moving side to side 2 3 – 4 mos.
Grasps hand toy 4 3 – 5 mos.
Inspects fingers 1 3 mos.
Likes to play with people 2 3 – 4 mos.
Pushes down on legs when feet are on a hard surface 2 3 – 4 mos.
Reaches for face 1 3 mos.
Recognizes familiar objects at a distance 2 3 – 4 mos.
Regards speaker 1 3 mos.
Regards toys 1 3 mos.
Responds to sounds by making sounds 3 3 – 7 mos.
Rolls to side 2 3 – 4 mos.
Shakes rattle 3 3 – 4 mos.
Smiles spontaneously at pleasurable sound 2 3 – 4 mos.
Stretches legs out and kicks when lying on stomach or back 1 3 mos.
Uses hand and eyes together; eg. reaches for object 5 3 – 5 mos.
Visually follows person who is moving across a room 1 3 mos.
Watches faces closely 2 3 – 4 mos.
Babbles with expression/emotion 2 4 mos.
Briefly holds onto breast or bottle 1 4 mos.
Clutches at clothes 1 4 mos.
Consistently cries in different ways to show hunger, pain, or being tired 2 4 mos.
Hands held predominately open 1 4 mos.
Has well developed self-consolation skills (Can fully calm himself) 1 4 mos.
Knows familiar faces versus strangers 3 4 – 6 mos.
Laughs out loud 1 4 mos.
Makes sounds to show joy and displeasure 4 4 – 7 mos.
Mouths objects 2 4 – 6 mos.
No head lag when pulled to sit 2 4 mos.
Nonverbally communicates different emotions - happy, upset, sad 2 4 – 8 mos.
Persists at reaching for object 2 4 – 5 mos.
Props on wrists 1 4 mos.
Pushes chest up to elbows 1 4 mos.
Responds to affection 2 4 mos.
Rolls front to back 4 4 – 7 mos.
Sits if trunk is supported 1 4 mos.
Smiles spontaneously at pleasurable sight 1 4 mos.
Stops crying at parent voice 1 4 mos.
Stops crying to soothing voice 1 4 mos.
Takes turns when babbling 4 4 – 6 mos.
Vocalizes when alone 1 4 mos.
Begins to respond to name 4 5 – 7 mos.
Forms attachment relationship to caregiver 1 5 mos.
Makes many different sounds (eg. razzes, squeals) 2 5 mos.
Mouths pureed food 1 5 mos.
Moves hands in front of body to prevent falling forward while sitting 1 5 mos.
Palmar grasps cube 1 5 mos.
Recognizes non-primary caregiver visually 1 5 mos.
Regards small object such as pellet or small cracker 1 5 mos.
Rolls back to front 3 5 – 7 mos.
Sits with arms supporting trunk 2 5 – 7 mos.
Sits with pelvic support 1 5 mos.
Transfers objects hand-mouth-hand 1 5 mos.
Turns head to look for dropped spoon 1 5 mos.
Bangs and shakes toys 1 6 mos.
Beginning to use oral exploration for learning 1 6 mos.
Bounces with legs when held 3 6 – 7 mos.
Brief behavioral response to "no", such as briefly stopping 3 6 – 9 mos.
Engages in social play with others 3 6 – 7 mos.
Feeds self crackers 1 6 mos.
Gestures for “up” 1 6 mos.
Gets from sitting to crawling or prone (lying on stomach) position 2 6 – 12 mos.
In prone position, bears weight on 1 hand 1 6 mos.
Looks around at things nearby 1 6 mos.
Moves backwards while on stomach 2 6 mos.
Often seems happy 2 6 – 7 mos.
Pivots in prone 1 6 mos.
Places both hands on bottle 1 6 mos.
Produces reduplicative babble with consonants (eg. "ma-ma-ma", "wa-wa-wa") 5 6 – 9 mos.
Rakes pellet 2 6 – 7 mos.
Reaches with one hand 2 6 – 7 mos.
Removes cloth on face 1 6 mos.
Responds to other people’s emotions 2 6 – 7 mos.
Rocks back and forth while on hands and legs 2 6 mos.
Rotates in sitting position 1 6 mos.
Shy or anxious with strangers 4 6 – 12 mos.
Sits momentarily propped on hands 2 6 – 7 mos.
Sits without support steadily 5 6 – 9 mos.
Smiles or vocalizes to mirror image of self 3 6 – 7 mos.
Strings vowels together 2 6 mos.
Supports whole weight on legs when held 3 6 – 7 mos.
Takes second cube and holds on to first 1 6 mos.
Touches reflection and vocalizes 1 6 mos.
Transfers objects hand-to-hand 3 6 – 7 mos.
Tries to get things out of reach 2 6 – 7 mos.
Attends to music 1 7 mos.
Can visually follow fast moving objects 1 7 mos.
Develops full color vision 1 7 mos.
Distinguishes emotions by tone of voice 1 7 mos.
Explores different aspects of toy 1 7 mos.
Explores with hands and mouth 1 7 mos.
Finds partially hidden object 2 7 mos.
Increasing variety of syllables 1 7 mos.
Inspects small object in each hand 1 7 mos.
Looks from object to parent and back when wanting help 1 7 mos.
Looks toward familiar object when named 1 7 mos.
Puts arms out to sides for balance 1 7 mos.
Radial-palmar grasp of small object 1 7 mos.
Recognizes objects from across the room 1 7 mos.
Refuses excess food 1 7 mos.
Uses hands to keep from falling side ways while sitting 1 7 mos.
Bangs spoon after demonstration 1 8 mos.
Crawls forward on belly by pulling with arms and pushing with legs 2 8 – 12 mos.
Echolalia (repeats words or phrases previously heard) 1 8 mos.
Engages in gaze monitoring: adult looks away and child follows adult glance with own eyes 1 8 mos.
Finger feeds a few small food items (eg. Cheerio) 1 8 mos.
Gets into sitting position 4 8 – 12 mos.
Holds own bottle 1 8 mos.
Looks for family members when prompted ("where's mama?") 2 8 – 12 mos.
Pulls out large peg from pegboard 1 8 mos.
Pulls to kneeling position 1 8 mos.
Pulls to sitting position 2 8 – 9 mos.
Responds to “Come here” 1 8 mos.
Says “Dada” (nonspecific) 2 8 – 12 mos.
Scissor grasp of small object 1 8 mos.
Seeks object after it falls silently to the floor 1 8 mos.
Takes objects out of container 3 8 – 12 mos.
Uses simple gestures 6 8 – 18 mos.
Bangs two cubes together 4 9 – 12 mos.
Bear walks (all four limbs straight) 1 9 mos.
Begins moving forward or backwards on hands and knees (creeping) 1 9 mos.
Bites cracker or similar food 1 9 mos.
Chews cracker or similar food 1 9 mos.
Copies gestures (like waving bye bye) 6 9 – 15 mos.
Follows a point with visual prompt, “Oh look at ...” 1 9 mos.
Imitates vocalizations 2 9 – 12 mos.
Inspects object, such as a bell or toy 1 9 mos.
Learns interactive gesture games, such as “peek-a-boo” and “so big” 2 9 mos.
Looks at pictures in book 2 9 – 11 mos.
Looks for things he/she sees you hide 2 9 mos.
Looks preferentially when name is called 2 9 – 10 mos.
May be more clingy with familar adults 1 9 mos.
Moves easily on hands and knees 4 9 – 12 mos.
Orients to bell 1 9 mos.
Picks up things like cereal o's between thumb and end of index finger (fine pincer grasp) 3 9 – 12 mos.
Picks up things like cereal o's between thumb and middle of index finger (inferior pincer grasp) 3 9 – 12 mos.
Plays interactive games (eg, “peek-a-boo,” “pat-a-cake”) 4 9 – 12 mos.
Points to get or request desired object (proto-imperative pointing) 4 9 – 18 mos.
Produces nonreduplicative babble (eg. "ah-goo", "maga" "baboba") 1 9 mos.
Pulls string to obtain ring 1 9 mos.
Pulls to stand 4 9 – 12 mos.
Puts non-food items into mouth 1 9 mos.
Radial-digital grasp of small object 1 9 mos.
Recognizes familiar people visually 1 9 mos.
Rings bell 1 9 mos.
Says “Mama” (nonspecific) 2 9 – 12 mos.
Seeks parent for play 1 9 mos.
Separation anxiety 4 9 – 12 mos.
Shows specific preferences for certain toys 3 9 – 12 mos.
Smoothly moves things between hands 1 9 mos.
“Stands” on feet and hands 1 9 mos.
Stands with one hand held 2 9 – 10 mos.
Starts to point out objects 2 9 mos.
Uses sounds to get attention 3 9 – 12 mos.
Watches the path of something as it falls 1 9 mos.
Clumsy release of small object 1 10 mos.
Cruises around furniture using two hands 3 10 – 12 mos.
Drinks from cup held for child 1 10 mos.
Experiences fear beyond stranger anxiety (eg. fear of new toy, animal, picture) 2 10 – 12 mos.
Finds hidden things easily 6 10 – 13 mos.
Isolates index finger and pokes 3 10 – 12 mos.
Pokes at pellet in bottle 1 10 mos.
Says "Mama" or “Dada” (specific) 3 10 – 12 mos.
Tries to put objects in cup but sometime may not let go 1 10 mos.
Walks with two hands held 1 10 mos.
Bounces to music 1 11 mos.
Cooperates with dressing 3 11 – 12 mos.
Cruises around furniture using one hand 2 11 – 12 mos.
Finds toy under cup 1 11 mos.
Gives objects to adult for help 1 11 mos.
Says first word other than "mama" or "dada" 2 11 – 12 mos.
Stands for a few seconds 3 11 – 12 mos.
Stirs with spoon 1 11 mos.
Stops activity when told “no” 2 11 – 12 mos.
Throws objects 1 11 mos.
Vocalizes to songs 1 11 mos.
Walks with one hand held 1 11 mos.
Assumes hands-and-knees position 1 12 mos.
Attempts two-cube tower 1 12 mos.
Begins to use objects correctly (brushing hair, drinking from cup, listening to phone) 3 12 – 15 mos.
Enjoys imitating people in play 1 12 mos.
Explores things in different ways, like shaking, banging, throwing 3 12 – 14 mos.
Finger feeds part of meal 2 12 mos.
Follows one-step command with gesture 7 12 – 16 mos.
Hands you a book when wants to hear a story 3 12 – 15 mos.
Holds crayon 1 12 mos.
Lets objects go voluntarily 2 12 mos.
Lifts box lid to find toy 1 12 mos.
May be fearful in some situations 2 12 – 18 mos.
May walk two or three steps without support 4 12 – 13 mos.
Pays increasing attention to speech 1 12 mos.
Points at object to express interest (protodeclarative pointing) 4 12 – 18 mos.
Prefers mother and/or regular caregiver over all others 1 12 mos.
Produces immature jargoning 4 12 – 13 mos.
Puts objects into container 4 12 – 15 mos.
Rattles spoon in cup 1 12 mos.
Recognizes names of two objects and looks when named 4 12 – 13 mos.
Says exclamations like "uh-oh!" 2 12 mos.
Scribbles after demonstration 2 12 mos.
Shows objects to parent to share interest 2 12 – 15 mos.
Shows specific preferences for certain people other than primary caregiver 2 12 mos.
Stands well with arms high, legs splayed 2 12 mos.
Takes objects out of a container 1 12 mos.
Takes off hat 1 12 mos.
Tests parental responses to own actions 2 12 mos.
Tries to imitate words 2 12 mos.
Uses posterior protection 1 12 mos.
Uses several gestures with vocalizing 2 12 – 15 mos.
Attempts to release pellet in bottle 1 13 mos.
Dangles ring by string 1 13 mos.
Drinks from cup with some spilling 2 13 – 15 mos.
Functional play (playing with objects or toys according to their intended functionl eg. driving car) 1 13 mos.
Reaches around clear barrier to obtain object 1 13 mos.
Shows desire to please caregiver 1 13 mos.
Solitary play 1 13 mos.
Unwraps toy in cloth 1 13 mos.
Uses three words 3 13 – 15 mos.
Adds third cube to a two-cube tower 1 14 mos.
Chews well 1 14 mos.
Dumps pellet out of bottle after demonstration 1 14 mos.
Falls by collapse 1 14 mos.
Follows one-step command without gesture 6 14 – 24 mos.
Imitates back and forth scribble 1 14 mos.
Names one object 1 14 mos.
Puts round peg in and out of hole in peg board 1 14 mos.
Puts spoon in mouth (turns over) 1 14 mos.
Removes socks/shoes 1 14 mos.
Stands without pulling up 1 14 mos.
Walks well 4 14 – 24 mos.
Asks for help activating a toy 1 15 mos.
Builds three-cube tower 2 15 – 18 mos.
Climbs onto furniture with help 1 15 mos.
Climbs onto furniture without help 4 15 – 24 mos.
Creeps or crawls up stairs 1 15 mos.
Fusses to be changed 1 15 mos.
Gets object from another room upon demand 1 15 mos.
Hugs adult in reciprocation 1 15 mos.
Interested in helping with chores 1 15 mos.
Listens to a story 1 15 mos.
Mature jargoning with real words 1 15 mos.
Places 10 cubes in cup 1 15 mos.
Places circle in single-shape puzzle or form board 2 15 – 16 mos.
Points to one body part 3 15 – 18 mos.
Points to one object of three when named 1 15 mos.
Recognizes that a toy requires activation 1 15 mos.
Runs stiff-legged 4 15 – 24 mos.
Scribbles spontaneously 4 15 – 24 mos.
Shows empathy (someone else cries, child looks sad) 1 15 mos.
Stoops to pick up toy 2 15 mos.
Turns pages in book 1 15 mos.
Uses spoon with some spilling 3 15 – 18 mos.
Walks backwards 2 15 – 16 mos.
Walks carrying toy 1 15 mos.
Fetches and carries objects within the same room 2 16 – 24 mos.
Finds toy observed to be hidden under layers of covers 3 16 – 24 mos.
Kisses by touching lips to skin 1 16 mos.
Periodically visually relocates caregiver 1 16 mos.
Picks up and drinks from cup 3 16 – 18 mos.
Points to one picture when named 1 16 mos.
Puts several round pegs in board with urging 1 16 mos.
Self-conscious; embarrassed when aware of people observing 1 16 mos.
Stands on one foot with slight support 1 16 mos.
Turns over container to pour out contents 2 16 – 24 mos.
Uses five words 3 16 – 18 mos.
Walks up stairs with support, putting both feet on each step 6 16 – 24 mos.
Begins to show shame (when does wrong) and possessiveness 1 18 mos.
Builds four-cube tower 3 18 – 24 mos.
Can help undress herself 1 18 mos.
Creeps or crawls down stairs 1 18 mos.
Crudely imitates vertical stroke 2 18 mos.
Engages in pretend play with other people (eg, tea party, birthday party) 5 18 – 30 mos.
Explores environment alone but with parent close by 2 18 mos.
Frequently alternates mood (happy to sad, friendly to aggressive) 4 18 – 48 mos.
Imitates environmental sounds (eg, animals) 1 18 mos.
Is spontaneous with affection 1 18 mos.
Knows the names of favorite books 1 18 mos.
Knows what familiar things are for; for example, telephone, brush, spoon 2 18 – 24 mos.
Laughs in response to others 1 18 mos.
Likes to hand things to others as play 1 18 mos.
Matches pairs of objects 1 18 mos.
May have temper tantrums 1 18 mos.
Moves about house without adult 1 18 mos.
Names one picture 2 18 – 24 mos.
Passes M-CHAT 1 18 mos.
Points to familiar people when named 2 18 – 24 mos.
Points to get the attention of others 1 18 mos.
Points to self 1 18 mos.
Points to show someone what he wants 2 18 mos.
Points to three body parts 2 18 – 24 mos.
Points to two of three objects when named 2 18 – 24 mos.
Pulls toys while walking 2 18 – 24 mos.
Removes unzipped coat or sweater 1 18 mos.
Replaces circle in form board after it has been turned around, usually with trial and error 1 18 mos.
Runs well 2 18 – 36 mos.
Says “no” 1 18 mos.
Seats self in small chair 1 18 mos.
Shows interest in simple pretend play, such as feeding a doll 4 18 – 24 mos.
Shows spontaneous affection to familiar people 1 18 mos.
Throws ball while standing 1 18 mos.
Tries to help with household tasks 2 18 – 33 mos.
Understands “mine” 2 18 – 36 mos.
Uses giant words like "all done" and "stop that") 1 18 mos.
Uses spoon well 3 18 – 60 mos.
Uses ten words 2 18 mos.
Walks up stairs without support, putting both feet on each step 3 18 – 48 mos.
Walks up stairs with support, alternating feet 4 18 – 36 mos.
Answers requests with “no” 1 20 mos.
Begins to have thoughts about feelings 1 20 mos.
Builds five-cube tower 2 20 – 24 mos.
Carries large object 1 20 mos.
Deduces location of hidden object 1 20 mos.
Feeds self with spoon entire meal 1 20 mos.
Holophrases (“Mommy?” and points to keys, meaning: “These are Mommy’s keys.” or "Milk" with a gesture to mean "I want milk") 1 20 mos.
Kisses with pucker 1 20 mos.
Places only edibles in mouth 1 20 mos.
Places square in single shape puzzle or form board 1 20 mos.
Points to three pictures 1 20 mos.
Puts all round pegs into board without urging 1 20 mos.
Puts square peg into board 1 20 mos.
Squats in play 1 20 mos.
Two-word combinations 1 20 mos.
Understands difference between "her", "him", and "me" 2 20 – 24 mos.
Walks down stairs with support, putting both feet on each step 5 20 – 24 mos.
Adds one word per week 1 22 mos.
Asks for "more" 1 22 mos.
Closes box with lid 1 22 mos.
Completes simple 3 piece inset puzzle 1 22 mos.
Drinks from cup well 1 22 mos.
Imitates circular scribble 2 22 – 24 mos.
Imitates vertical line 1 22 mos.
Kicks ball with demonstration 4 22 – 24 mos.
Points to five body parts (preferred) 3 22 – 24 mos.
Points to four pictures when named 2 22 – 24 mos.
Points to four pieces of clothing when named 3 22 – 24 mos.
Puts shoes on partway 1 22 mos.
Shows defiant behavior (doing what he has been told not to) 3 22 – 24 mos.
Unzips zippers 1 22 mos.
Uses 25 words 1 22 mos.
Walks with one foot on walking board 1 22 mos.
Watches other children intensely 1 22 mos.
Asks parent to read a book 1 24 mos.
Begins to mask emotions for social etiquette 1 24 mos.
Climbs down from furniture without help 2 24 mos.
Completes sentences and rhymes in familiar books 3 24 – 30 mos.
Copies circle 4 24 – 36 mos.
Corrects you if you change a word in a familiar book 1 24 mos.
Follows two-step command 5 24 – 36 mos.
Gets excited when with other children 2 24 mos.
Has established a special attachment to a transitional object 1 24 mos.
Imitates activities of adults and older children (like swepping, talking on phone, food preparation) 5 24 – 36 mos.
Imitates circle 2 24 mos.
Imitates horizontal line 2 24 mos.
In response to, “Where is _____?”, points to object or animal in a book 2 24 mos.
Is understandable 50% of the time to unfamiliar listener 2 24 – 30 mos.
Jumps in place 3 24 – 30 mos.
Kicks ball without demonstration 3 24 – 48 mos.
Makes a single-line “train” of cubes 1 24 mos.
Matches objects to pictures 1 24 mos.
Might use one hand more than the other 2 24 mos.
Names three pictures 2 24 mos.
Parallel play 3 24 mos.
Plays with other children 2 24 – 30 mos.
Points to five pictures 2 24 mos.
Pulls off pants 1 24 mos.
Recognizes names of familiar objects 1 24 mos.
Recognizes names of familiar people 1 24 mos.
Refers to self by name 1 24 mos.
Refers to self with correct pronoun 2 24 – 30 mos.
Repeats words overheard in conversation 2 24 mos.
Separates easily from mom and dad 3 24 – 36 mos.
Shows more and more independence 2 24 mos.
Sorts colors 3 24 mos.
Sorts shapes 3 24 mos.
Speaks-three-word sentences 3 24 – 36 mos.
Speaks two-word sentence (noun with verb) 4 24 mos.
Stands on tiptoe 2 24 mos.
Sucks through a straw 1 24 mos.
Takes off clothes without buttons 1 24 mos.
Throws ball in specific direction 5 24 – 48 mos.
Throws ball overhand 10 feet 5 24 – 48 mos.
Throws overhand 5 24 – 48 mos.
Turns book pages one at a time 2 24 – 36 mos.
Turns door handle 2 24 – 36 mos.
Understands difference between "me" and "you" 2 24 mos.
Uses 50 words 2 24 mos.
Uses simple phrases 1 24 mos.
Uses telegraphic speech (eg. "Shoe on" or "Want juice") 1 24 mos.
Walks down stairs without support, putting both feet on each step 2 24 – 48 mos.
Begins to use pronouns (I, me, you) 2 28 – 36 mos.
Communicates to caregiver when needs to use toilet 1 28 mos.
Jumps from bottom step with one foot leading 1 28 mos.
Matches colors 1 28 mos.
Matches shapes 1 28 mos.
Names ten pictures 2 28 – 36 mos.
Puts on clothes with help 2 28 – 30 mos.
Repeats two digits 1 28 mos.
Strings large beads awkwardly 1 28 mos.
Turns paper pages (often several at once) 1 28 mos.
Understands “just one” 1 28 mos.
Unscrews jar lid 2 28 – 36 mos.
Walks backward 10 steps 1 28 mos.
Walks on toes after demonstration 1 28 mos.
Brushes teeth with assistance 2 30 mos.
Builds eight-cube tower 4 30 – 48 mos.
Dries hands after washing 1 30 mos.
Echolalia and jargoning gone 1 30 mos.
Engages in imaginitive, more complex pretend play that incorporates dolls, stuffed animals, or people 3 30 – 36 mos.
Has preference for certain peers (has friends) 1 30 mos.
Knows the correct action for a selected animal or person 1 30 mos.
Makes a “train” of cubes and includes a smoke stack 1 30 mos.
May get upset with major changes in routine 2 30 – 36 mos.
Names familiar objects by use 2 30 – 36 mos.
Points to six body parts 1 30 mos.
Points to small details in pictures 1 30 mos.
Puts things away 1 30 mos.
Replaces circle in form board after it has been turned around with little or no trial and error) 1 30 mos.
Stands with both feet on balance beam 1 30 mos.
Understands actions words: “playing... washing... blowing” 1 30 mos.
Understands at least two prepositions ("in", "on") 1 30 mos.
Walks with one foot on balance beam 1 30 mos.
Washes hands 3 30 – 48 mos.
Begins to take turns 2 33 – 36 mos.
Builds nine-cube tower 1 33 mos.
Enjoys being read to (short books) 1 33 mos.
Gives first and last name 3 33 – 48 mos.
Imitates cross 1 33 mos.
Is toilet trained during the daytime for both bowel and bladder 2 33 – 36 mos.
Points to body parts based on function (“What do you hear with?”) 1 33 mos.
Points to objects by use: “ride in ... put on feet ... write with” 1 33 mos.
Points to self in photos 1 33 mos.
Puts on coat unassisted 1 33 mos.
Puts six square pegs in pegboard 1 33 mos.
Rote counts to 3 1 33 mos.
Sometimes uses past tense 1 33 mos.
Understands at least three prepositions 2 33 – 36 mos.
Understands simple adjectives eg. long/ short, big/small, dirty/wet 2 33 – 36 mos.
Walks swinging arms opposite of legs (synchronous gait) 1 33 mos.
Asks to be read to 1 36 mos.
Balances on one foot for 1 second 1 36 mos.
Balances on one foot for 3 seconds 1 36 mos.
Builds seven-cube tower 2 36 mos.
Builds six-cube tower 1 36 mos.
Can name most familiar things 2 36 mos.
Can work toys with moving parts 1 36 mos.
Carries on a conversation using 2 to 3 sentences 2 36 mos.
Catches ball with stiff arms 1 36 mos.
Climbs well with confidence 3 36 – 60 mos.
Cuts with scissors: side-to-side (awkwardly) 1 36 mos.
Does puzzles with 3 interlocking pieces 1 36 mos.
Draws a 2-part person 4 36 – 48 mos.
Draws a 3-part person 4 36 – 48 mos.
Dresses and undresses without assistance 6 36 – 72 mos.
Enjoys interactive play 1 36 mos.
Fears imaginary things (e.g. Monsters) 2 36 – 48 mos.
Follows three-step commands 4 36 – 72 mos.
Gives first name 1 36 mos.
Identifies self as boy or girl 3 36 mos.
Imagitive play includes elaborate narrative 4 36 – 48 mos.
Imitates activites of peers 1 36 mos.
Imitates bridge of cubes 1 36 mos.
Independent eating 1 36 mos.
Is understandable 75% of the time to unfamiliar listeners 4 36 – 48 mos.
Knows own age 2 36 mos.
Matches letters 1 36 mos.
Matches numerals 1 36 mos.
Names a friend 2 36 mos.
Names body parts by use 1 36 mos.
Names body parts when function described (eg. what do you see with?) 1 36 mos.
Pedals tricycle 3 36 mos.
Points to parts of pictures (nose of cow, door of car) 1 36 mos.
Pours liquid from one container to another 3 36 – 48 mos.
Puts on shoes without laces 1 36 mos.
Screws jar lid 1 36 mos.
Shows affection for friends without prompting 1 36 mos.
Shows concern for crying friend 1 36 mos.
Shows wide range of emotions 1 36 mos.
Sorts objects by category 1 36 mos.
Starts to share without prompt 1 36 mos.
Starts to share with prompt 1 36 mos.
Strings small beads well 1 36 mos.
Unbuttons 1 36 mos.
Understands "his" or "hers" 1 36 mos.
Understands negatives 1 36 mos.
Understands what "two" means 1 36 mos.
Uses 200 words 1 36 mos.
Uses plurals 3 36 – 48 mos.
Uses pronouns correctly 4 36 – 72 mos.
Uses words to describe what someone else is thinking (“Mom thought I was asleep”) 1 36 mos.
Walks down stairs without support, alternating feet 2 36 – 48 mos.
Walks heel to toe 1 36 mos.
Walks up stairs without support, alternating feet 4 36 – 48 mos.
Acts appropriately for the community’s or family’s cultural values 1 48 mos.
Attempts counting sometimes with mistakes 2 48 mos.
Balances on one foot for 2 seconds (preferred) 2 48 mos.
Balances on one foot for 4 seconds (preferred) 3 48 – 72 mos.
Brushes teeth independently 2 48 mos.
Buttons 2 48 mos.
Cares for own toilet needs 4 48 – 60 mos.
Catches bounced ball 3 48 – 52 mos.
Consistently uses past tense 1 48 mos.
Cooperates with other children 2 48 mos.
Copies square 3 48 – 72 mos.
Cuts 5-inch circle 1 48 mos.
Cuts food with supervision 2 48 mos.
Cuts with scissors 3 48 – 60 mos.
Draws a 4-part person 3 48 mos.
Draws a 6-part person 3 48 – 72 mos.
Draws circle from memory 1 48 mos.
Engages in fantasy play, narrative now includes story lines that are not part of day to day activities 3 48 mos.
Enjoys doing new things 1 48 mos.
Gallops 1 48 mos.
Gives amounts up to four correctly 3 48 mos.
Has a preferred friend 1 48 mos.
Hops on one foot two to three times 4 48 – 72 mos.
Imaginative play includes role playing 2 48 mos.
Imitates gate with cubes 1 48 mos.
Interested in new experiences 1 48 mos.
Interested in “tricking” others and concerned about being tricked by others 1 48 mos.
Is aware of gender 3 48 – 60 mos.
Is understandable 100% of the time to unfamiliar listeners 3 48 – 72 mos.
Knows what to do if cold 1 48 mos.
Labels happiness, sadness, fear, and anger in self 1 48 mos.
Listens to story at least 5 minutes, directing attention to reader 1 48 mos.
Mashes own food 2 48 mos.
Names some colors 4 48 – 72 mos.
Names some numbers 1 48 mos.
Names things when actions are described 1 48 mos.
Negotiates solutions to conflicts 1 48 mos.
Often cannot distinguish between fantasy and reality 1 48 mos.
Often can’t tell what’s real and what’s make-believe 1 48 mos.
Participates in group play 1 48 mos.
Plays board games 3 48 – 72 mos.
Plays card games 2 48 mos.
Plays with favorite toys 1 48 mos.
Points to five colors 1 48 mos.
Points to letters when named 1 48 mos.
Points to numerals when named 1 48 mos.
Points to things that are the same versus different 3 48 mos.
Prefers playing with other children 1 48 mos.
“Reads” several common signs/ store names 1 48 mos.
Remembers parts of a story 2 48 mos.
Rote counts to 4 1 48 mos.
Sings a song or says a poem from memory 2 48 mos.
Speaks five-word sentences 1 48 mos.
Standing broad jump: 1 foot 1 48 mos.
Starts to copy some capital letters 2 48 mos.
Talks about what she likes 1 48 mos.
Tells stories 3 48 mos.
Tells you what they think is going to happen next in a book 2 48 mos.
Ties single knot 2 48 – 72 mos.
Understands more complex adjectives (eg. pointed) 2 48 – 60 mos.
Understands simple analogies (ice is cold and fire is ....) 1 48 mos.
Uses 300 words 1 48 mos.
Uses “feeling” words 1 48 mos.
Uses fork well 3 48 – 60 mos.
Uses tongs to transfer 1 48 mos.
Uses words that represent time 3 48 mos.
Views self as a whole person involving body, mind, and feelings 2 48 mos.
Walks or runs forward and backward with agility 1 48 mos.
Washes face 1 48 mos.
Wipes after bowel movement 1 48 mos.
Writes part of first name 2 48 – 60 mos.
Able to cut food with table knife independently 2 60 mos.
Alternates from being cooperative to being demanding 2 60 mos.
Apologizes for mistakes 1 60 mos.
Balances on one foot for 10 seconds (preferred) 4 60 – 72 mos.
Bathes independently 1 60 mos.
Better understands the concept of time 1 60 mos.
Builds stairs with cubes from model 1 60 mos.
Can do a somersault 2 60 mos.
Can swing independently, pumping with legs 2 60 mos.
Can use clothespins to transfer small objects 1 60 mos.
Copies geometric pattern, like a flag 3 60 – 72 mos.
Copies triangle 4 60 – 72 mos.
Counts 10 things 2 60 mos.
Defines simple words 1 60 mos.
Distinguishes fantasy from reality 3 60 – 72 mos.
Draws an 8-part person 1 60 mos.
Enjoys rhyming words and alliterations 1 60 mos.
Gives amounts up to 10 correctly 1 60 mos.
Has group of friends 1 60 mos.
Hops on one foot 15 times 4 60 – 72 mos.
Identifies coins 1 60 mos.
Jumps backward 1 60 mos.
Knows about things used every day in the home (money, food, appliances) 2 60 mos.
Knows important numbers (parent phone number, address) 1 60 mos.
Knows right and left on self 1 60 mos.
Knows sounds of consonants and short vowels 1 60 mos.
Likes to act 2 60 mos.
Likes to dance 2 60 mos.
Likes to sing 2 60 mos.
More likely to agree with rules 2 60 mos.
Names 10 colors 1 60 mos.
Names letters out of order 1 60 mos.
Names numerals out of order 1 60 mos.
Points correctly to “side,” “middle,” “corner” 1 60 mos.
Points to different one in a series 1 60 mos.
Produces words that rhyme 1 60 mos.
Puts paper clip on paper 1 60 mos.
Reads 25 words 1 60 mos.
Repeats six-word sentence 1 60 mos.
Responds to “why” questions 1 60 mos.
Responds verbally to good fortune of others (eg. "Congrats!") 1 60 mos.
Retells part of a story 1 60 mos.
Retells story with clear beginning, middle, end 1 60 mos.
Rote counts to 10 2 60 – 72 mos.
Running broad jump 2 feet 1 60 mos.
Says name and address 2 60 mos.
Shows concern and sympathy for others 1 60 mos.
Skips 4 60 – 72 mos.
Speaks sentences of more than 5 words 1 60 mos.
Spreads with knife 1 60 mos.
Takes on more independence outside of home 2 60 mos.
Tells a simple story using full sentences 3 60 – 72 mos.
Understands “er” endings 1 60 mos.
Uses 2,000 words 1 60 mos.
Uses future tense 2 60 mos.
Uses letter names as sounds to invent spelling 1 60 mos.
Walks backward heel-toe 1 60 mos.
Wants to be like friends 3 60 – 72 mos.
Wants to please friends 3 60 – 72 mos.
Writes first name 1 60 mos.
Writes some letters 2 60 – 72 mos.
Writes some numbers 3 60 – 72 mos.
10,000 word vocabulary 1 72 mos.
Asks what unfamiliar words mean 1 72 mos.
Builds stairs with cubes from memory 1 72 mos.
Can tell which words do not belong in a group 1 72 mos.
Combs hair 1 72 mos.
Creates short sentences 1 72 mos.
Describes events in order 1 72 mos.
Does simple addition/subtraction 1 72 mos.
Draws a 12-part person (includes facial features, fingers for example) 1 72 mos.
Draws diamond from memory 1 72 mos.
Enjoys school 1 72 mos.
Forms letters with down-going and counterclockwise strokes 1 72 mos.
Gives amounts up to 20 correctly 1 72 mos.
Has best friend 1 72 mos.
Has mature pencil grasp 1 72 mos.
Knows days of the week 1 72 mos.
Listens to a story or lesson for at least 10 minutes 1 72 mos.
Looks both ways at street 1 72 mos.
Reads 250 words 1 72 mos.
Remembers to bring belongings 1 72 mos.
Repeats 8-word sentences 1 72 mos.
Rote counts to 20 1 72 mos.
Sounds out regularly spelled words 1 72 mos.
Tandem walks 1 72 mos.
Ties shoes 2 72 mos.
Understands seasons 1 72 mos.
Uses appropriate tenses 1 72 mos.
Writes first and last name 1 72 mos.
Writes short sentences 1 72 mos.
Becomes upset in response to "no" 0
Climbs down from furniture with help 0
Puts shoes on correct feet 0
Rolls for purpose of movement across space 0
Traverses across space in seated position (scoots) 0