Articulation disorders involve substitutions of one sound for another (“w” for “r” as in “wabbit” for “rabbit”), leaving out sounds (“daw” for “dog”), or sound distortions, such as a frontal or lateral lisp. Children typically say almost all sounds correctly by the age of 5 or 6.
Phonological disorders are when a child continues to exhibit patterns of sound substitutions or omissions. For example, children with the phonological pattern of “fronting” consistently produce sounds made with the back of the tongue (like “k”) with the front of the tongue (like “t”). Therefore, a child says “tea” for “key.”
If a 3- year-old is not able to be understood by strangers about 75% of the time (90% for 4-year-old, 95% for 5-and 6-year old), then a speech evaluation should be recommended.
Children who are experiencing speech sound delays when it is time to start school are most at risk of having literacy difficulties.
For free downloadable speech sound sheets for practice at home, go to
MommySpeechTherapy.com.For short videos to help kids learn how to say individual sounds and how to practice them, go to
PeachieSpeechie.com.
Childhood Apraxia of Speech (CAS) is a rare motor speech disorder. Children with CAS have problems saying sounds, syllables, and words not because of muscle weakness or paralysis, but because the brain has problems planning movements of speech. The child knows what they want to say, but their brain has difficulty coordinating and planning muscle movements necessary to say those words. Children with CAS are often extremely difficult to understand. CAS is often confused with other speech sound disorders and should only be diagnosed by a speech-language pathologist. For more information about evaluation and treatment of children with apraxia of speech, go to
ApraxiaKids.org.