|
Chronological Age
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Sounds
|
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2 1/2 to 3
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all vowels except (er)
|
|
3
|
[p] [m] [h] [w]
|
|
3 1/2
|
[n] [b] [k] [d]
|
|
4
|
[g]
|
|
4 1/2
|
[t]
|
|
5
|
[y]
|
|
5 1/2
|
[th (voiceless)] [f] [ch] [v]
|
|
7
|
[sh] [j] [zh]
|
|
8
|
[r] [l] [th (voiced)]
|
|
9
|
[ng] [s] [z]
|
This developmental chart is based on the IOWA 1986 study. Each letter in [ ] represents a sound. It stops at the age level that 90% of all children are customarily producing that sound. Vowels are usually developed by age 3.
The following topics may answer questions regarding your child’s developing speech1. Parents can make articulation cards using this website
2. Stuttering awareness game
3. Stuttering homepage with fluency information, chat room and worksheets – www.mankato.msus.edu/dept/comdis/kuster/stutter.html
4. Carryover
exercises for articulation