
Communication Milestones

0-3 Months
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Smiles in response to sound or voice
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Turns head towards sound or voice
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Shows interest in faces
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Makes eye contact
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Cries differently for different needs (e.g. hungry vs. tired)
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Coos and smiles

4-6 Months
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Listens and responds when spoken to
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Begins to use consonant sounds in babbling, e.g. “da, da, da”
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Makes different kinds of sounds to express feelings
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Notices toys that make sounds
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Uses babbling to get attention

7-9 Months
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Uses increased variety of sounds and syllable combinations in babbling
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Looks at familiar objects and people when named
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Participates in two-way communication
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Shows recognition of commonly used words
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Simple gestures, e.g. shaking head for “no”
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Imitates sounds

10-12 Months
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Meaningfully uses “mama” or “dada”
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Responds to simple directions, e.g. “Come here”
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Produces long strings of gibberish (jargoning)
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Says one or two words
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Imitates speech sounds
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Pays attention to where you are looking and pointing

15 Months
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May use 5-10 words
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Combines sounds and gestures
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Imitates simple words and actions
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Consistently follows simple directions
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Shows interest in pictures
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Can identify 1-2 body parts when named
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Understands 50 words

18 Months
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Responds to questions
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Repeats words overheard in conversation
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Continues to produce speech-like babbling
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Points at familiar objects and people in pictures
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Understands “in” and “on”
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Responds to yes/no questions with head shake/nod

21 Months
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Uses at least 50 words
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Consistently imitates new words
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Names objects and pictures
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Understands simple pronouns (me, you, my)
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Identifies 3-5 body parts when named
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Understands new words quickly

24 Months
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Begins to use 2 word phrases
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Uses simple pronouns (me, you, my)
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Understands action words
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Uses gestures and words during pretend play
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Follows 2-step related directions e.g. “Get you stuffy and bring it to me”
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Enjoys listening to stories

30 Months
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Consistently uses 2-3 word phrases
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Uses “in” and “on”
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At least 50% of speech is understood by caregiver
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Follows 2-step unrelated directions, e.g. “give me the ball and go get your coat”
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Understands basic nouns and pronouns
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Understands “mine” and “yours”

By 36 Months
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Asks “what” and “where” questions
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Uses plurals, e.g. “dogs”
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Most speech is understood by caregiver
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Simple understanding of concepts including color, space, time
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Understands “why” questions
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Understands most simple sentences

3-4 Years
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Children learn many new words by listening to adults and guessing from context​
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Knows/uses names for groups of things like ‘vegetables’ or ‘animals’
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Knows family terms like ‘brother’ or 'sister'
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Name basic emotions like ‘happy’, ‘sad’ and ‘angry'
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Learning more about how to put words together into sentences
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Begin to use more complex sentences that include words like ‘because’, ‘so’, ‘if’ and ‘when’ – for example, ‘I don’t like that because it’s yucky’
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Understand the basic rules of grammar. E.g. possessives - ‘daddy’s hat’. You’ll hear past and present tense too, like ‘talked’ and ‘talk’
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Child might be using ‘I’, ‘you’ and ‘me’ correctly. But they might confuse the use of negatives

4-5 Years
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By 4 years speech sounds are still developing; might still have trouble pronouncing words that include the sounds ‘l’, ‘th’ or ‘r’
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Child is able to have several back and forth conversational turns
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Begin to tell stories with a beginning and end, but may need prompts to keep the story going
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Child will be able to do some simple negotiation with other children. For example, they’ll be able to talk about who can play with a toy first
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By 5 years and beyond, children can mostly use the correct forms of verbs to talk about past and future events – for example, night, day and yesterday
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Understand irregular past tense - ‘broke’, ‘threw’ and ‘ate’ rather than ‘breaked’, ‘throwed’ and ‘eated"