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Infants » Newborn Development

Ages and Stages

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Age in Months

Action on Objects Manipulations

Ideas and Thoughts


Inserts, holds on, lets go, picks, pats, hides, finds, stacks, unstacks, twirls, drops, gazes, pushes, raises, lowers, rolls, squeezes, eats, spits, stuffs, sucks, mouths

1.     I believe only what I see.

2.     I reinvent objects each time they appear.

3.     I see it as “new” each time.

4.     I have a constant image of a disappearing objects, if I see it      disappear.

5.     My sensory images re mixed – visible with auditory/tactile, etc.


Pushes, pulls, corrals, drags, throws, crushes, retrieves, goes backward then forward, mouths, tugs, lifts, lowers, hits, pokes, bats

1.     I say “me do” because objects are part of me, an extension of self.

2.     I think about 2 objects together and what “to do” to them.

3.     I search and sort objects in my hands and my mind.


Hands off, retrieves, sweeps off, stacks up, unstacks, takes off, puts up, goes off, comes back, hides, finds, pretends to sleep, feeds “baby”, reads a book, pretends to talk on phone, sings a song, dances, fights, knocks down, gets up

1.     I give objects away expecting them to come right back.

2.     I find objects’ parts and move them.

3.     I point, gesture, and name objects and find hidden objects both visible and invisible.

4.     I see “self” as being able to pretend with real unambiguous objects.

5.     I imitate exactly what I see.


Scribbles, stirs, dumps, pours, picks, spreads, fingers, grabs, stacks, uses finger release and fine insertion tip-to-tip, does puzzles, places toys in groups that are alike, uses sticks for spoons, takes doll and has her feed the bear.

1.     I use tools in my hands to draw symbols.

2.     I find objects hidden when I wasn’t looking because I can displace objects in my mind.

3.     I use words as labels instead of pointing.

4.     I see contours and edges of objects so I can “fit” objects together in my mind.

5.     I imitate what I see with substitutes and can switch places and object in my mind.

6.     I can “exchange” ideas in mind.


Tips, leans, staggers, shakes, wiggles, rattles, balances, uses whole arm for support, uses hands pronated, uses whole hand for group, waves bye-bye rather than running to the door, mixes, matches objects

1.     I substitute mom/me/objects interchangeably.

2.     I can imagine ambiguous image and use for objects.

3.     I can “operate” on objects from a mental perspective instead of doing it.

4.     I change spaces and positions of objects.

5.     I recognize gravity.

6.     I group and sort objects.



Winds up, opens, closes, locks, unlocks, washes, dries, folds, unfolds, builds, unbuilds, uses spoons, forks, crayons, brushes, handles, knobs, runs, teases, screams, falls, get p, smells, throws, covers up, refuse, says “no”, opposes, goes toward, turns away

1.     I use familiar object, but I also think about varying their use.

2.     I can group objects by specific parts, but not the whole (i.e., this is Mary’s eye and my eye, but me and the doll are still separate images with separate eyes, not the same eyes).

3.     I show feelings for objects I’m thinking about.


Draws, mounds up, digs, pokes, strokes, writes numerals, letters, circles, open lines, wiggly liens, rolls up, unrolls, winds up, unwinds, pedals up and down not round and round, breaks, hits, moves away, watches, repeats, gathers, discards

1.     I have anxious ideas about what objects do (people are objects).

2.     I start to separate auditory images from visual ones, tactile ones from visual ones.

3.     I take one aspect of an object and study it at a time.

4.     I can mentally “map” objects if they are concretely grouped together, not a picture in other words.

5.     I can find things hidden if it’s a real situation.



Zips, unzips, pedals, draws lines that meet and intersect, measures, draws in air, connects, points, traces, copies, packs, unpacks, arranges, rearranges, matches alike and no alike

1.     I can exchange animate and inanimate characteristics of objects.

2.     I can get a mental perspective on objects from another viewpoint.

3.     I can use real patterns and maps (like Lotto and doll house play) to imagine where objects might be.

4.     I can recognize relationships between an event, a person, and a feeling.

5.     I can think in separate patterns and images about myself vs. another person or an event.

Ask Dr. Susan