A post, I wrote earlier this year, gives some tips as to when parents/teachers should expect children to accurately use specific sounds. Speech-Language support is not limited in it's focus to development of sounds. We also offer guidance and practice with students use and understanding of language. A delay in language development may be trickier to notice, but I came across a useful "Indicator Checklist" within the online store, Teachers Pay Teachers. The checklist, found at this source is pasted below.
Language Difficulty Indicators:
Vocabulary is low or limited
Exhibits word finding difficulties
Responses are delayed or inappropriate
Has trouble following directions
Requires frequent redirection, repetition, or rephrasing
Has difficulty with concepts of time, sequence, quantity, position, direction, and/or quality
Responds inappropriately to who, what, when, where and why-questions
Multi-step directions or tasks are difficult
Word grammar is poor
Sentence construction and/or grammar is poor
Has difficulty making word associations and/or categorizations
Trouble defining and describing words/objects
Difficulty determining similarities, differences, and/or attributes
Difficulty using and/or understanding past/present/future tenses
Phonemic awareness skills are low
Poor spelling skills
*Students who have these problems may have problems processing language and could possibly benefit from extra help.
Once again my door is open to start or continue this conversation if there are any concerns!