Speech Milestones
Typical Speech Development Patterns
- 0-6 months
- Coos
- Vocalizes open vowel sounds
- Laughs
- 6-12 months
- Emergence of consonantal babbling
- Produces consonant-vowel (cv) and repeated cv combinations
- Imitates cv syllables
- Imitates non-speech sounds (e.g. raspberries)
- 12-24 months
- Uses early-appearing consonants /p,b,m,t,d,n,w/ in babbling and in true words or word approximations
- Increases variety of syllable and word shapes (e.g. cv, vc, cvcv and cvc)
- Engages in jargon with varied intonation
- 24-48 months
- Continues to expand consonant inventory (see chart below)
- Uses a variety of syllable and word shapes (e.g. cv, vc, cvcv, cvc, vcv, cvcvc, ccvc)
Speech Production Chart
When should a child produce a sound accurately in all positions (beginning, middle, end) of words?

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