Katy Speech & Languange Therapy, Feeding & Swallowing Therapy, Katy, Texas 281-766-3831

Developmental Milestones

Birth to 3 Months / 4 Months to 6 Months / 7 Months to 9 Months / 10 Months to 12 Months / 12 Months to 18 Months / 18 Months to 24 Months / 2 Years to 3 Years / 3 Years to 4 Years / 4 Years to 5 Years
Birth to 3 Months

  • May startle to loud noises

  • May smile when spoken to

  • Familiar voices are soothing and comforting

  • Varies cries depending on needs

  • Cooing and gooing sounds when happy

  • May smile when seeing familiar faces (mom, dad)

  • Fluctuates speed of sucking in accordance to sounds

  • May suck fingers if near mouth

  • Fluctuates speed of sucking in accordance to sounds

  • Recognizes the difference between nipple and bottle

  • New voices are intriguing


4 Months to 6 Months

  • Follows the direction of sounds with eyes

  • Attentive to music and toys that make sounds

  • Vocalizes enthusiasm and discontent through laughter or cries

  • Makes babbling and gurgling sounds as a form of speech

  • Can hold bottle without assistance from mom or dad

  • Responds with an open mouth if spoon is nearby

  • Responsive to the word "no" as well as changes in parental tone of voice

  • Attentive to music, rhythm, and other surrounding noises


7 Months to 9 Months:

  • Begins to self-feed food (i.e. snacks, crackers)

  • Sips from cup dependent on adult holding it up (some loss of liquid)

  • If presented with a spoon, will reach for it

  • Makes sounds with the spoon by banging on table surface

  • Favors parent feeding versus self-feeding

  • Turns when name is called

10 Months to 1 Year

  • Appreciates games such as peek-a-boo and pat-a-cake

  • Recognizes familiar objects by name

  • Starts to reply to requests through gestures and babbling

  • Uses one or two words (closer to 1 year)

  • Begins to imitate certain speech sounds

  • Attentive when spoken to

  • Consumes lumped or mashed foods

  • Begins the use of rotary jaw chewing

12 Months to 18 Months

  • Can recognize and point to body parts if asked

  • Recognizes and points to pictures names in books

  • Attentive to children’s stories and enjoys songs

  • Follows simple commands and comprehends simple questions

  • Uses one/two word questions (i.e. "What’s that?")

  • Puts words together to express wants/needs

  • Effectively drink from a straw and grasp a spoon

  • Vocabulary grows from 2-50 words

18 Months to 24 Months

  • Knows how to indicate wet pants

  • Uses third-person language by referring to self by name

  • Involved in parallel play

  • Participates in communicating social words (i.e. "hi," "bye," "thank you")

  • Begins imitating adults

  • Gives up the bottle, self feeds, and has limited spills

  • Able to swallow with full lip closure

  • Vocabulary grows from 50-300 words

  • Intelligible speech 25-50%

  • Pronouns produced include: "I" and "it"

  • Understands prepositions such as in, on, and under

  • Understands directional terms such as up and down


2 Years to 3 Years

  • Comprehends variances in meaning such as opposites

  • Listens and enjoys longer stories

  • Follows two-step commands

  • Stutter may occur in words or sounds

  • Draws attention by labeling or commenting

  • Holds a cup in one hand and drinks with limited spillage

  • Effectively use spoon/fork and bite through various thicknesses

  • Vocabulary grows from 300-1,000 words

  • Intelligible speech 50-75%

  • Speech sounds produced include: /b/, /w/, /h/, /m/, /n/, /p/

  • Pronouns produced include: my, me, mine, you, your, she, he, yours, we

  • Begins asking "where" and "what" questions

  • Understands prepositions such as in, off, on, under, out of, together, away from

  • Comprehends size differences (i.e. big and little)

  • Able to identify similar objects from a presented group of various objects


3 Years to 4 Years

  • Responds to name called from a distance or separate room

  • Listens to electronics (i.e. television or radio) at same loudness levels as adults

  • Recognizes and comprehends basic colors and shapes

  • Comprehends family labels (i.e. brother, sister, grandma, grandpa)

  • Begins to ask "when" and "how" questions

  • Starts to rhyme simple words (i.e. dad-bad)

  • Sentences contain 4+ words

  • Vocabulary grows from 1,000-1,600 words

  • Intelligible speech 75-90%

  • Speech sounds produced include: /f/, /t/, /k/, /g/, /y/, /d/

  • Pronouns produced include: "they," "us," "hers," "its," "our," "him," "myself," "yourself," "ourselves"

  • Begins asking one-word "why" questions along with "is," "what," "where," "when," "how," and "whose" questions

  • Understands prepositions such behind, in front, around, beside, between

  • Able to discern the different object from the presented group


4 Years to 5 Years

  • Begins to comprehend sequences of events (i.e. first, second, third)

  • Obeys multi-step directions and classroom instructions

  • Hears and comprehends home and school conversation

  • Capable of telling a short/long imaginative and dramatic story

  • Understands transitioning between outdoor versus indoor voice

  • Converses easily with adults and participates in conversation with strangers

  • Capable of identifying letters and numbers

  • Varies speech dependent upon communication partner and environment

  • Vocabulary grows from 1,600-2,500 words

  • Intelligible speech 90-100%

  • Speech sounds produced include: /j/, /ch/, /sh/, /z/, /v/, /r/, /l/, /s/

  • Asks questions that follow a pattern of "do you want to?" "are we going to?" and "can you?"

  • Understands prepositions such as nearest, through, first, middle, last

  • Comprehends time concepts (i.e. yesterday, today, tomorrow)