Articulation Guidelines

for

Sound Development

90% of children have acquired these sounds by age 3-4 years:

/p/ /m/ /h/ /w/ /b/

90% of children have acquired these sounds by age 4-5years:

/k/ /g/ /d/ /f/ /v/ /y/ /t/

90% of children have acquired these sounds by age 6-7 years:

/ing/

90% of children have acquired these sounds by age 7-7.5 years:

/r/ /l/ /z/ /s/ /ch/ /sh/ /j/

90% of children have acquired these sounds by age 8-8.5 years:

/th - voiced/ /th-unvoiced/

The information included for consideration in the norms listed here does not include lateralization of phonemes. These would warrant special consideration with judgement being based on the clinician's professional judgement.