slp know of book/ languge development

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Hi any speech path's out there that can give imput.

I'm looking for a book that would give me the pregression of speech

development. LIke first sorting, matching, 2 objects or pictures then

sequencing ect.... Does any one know of a book that would help me

out as I work with my son while he is not in speech this summer.After

sorting and matching 2 objects , then do you go to three or move on

to something else. My son is Pdd on the autisic spectrum. His speech

is comming but I want to contuine to work with him and any imput

would be very helpful. I know he can do sorting, and matching of 3

ofjects and some sequencing with games , but I need help in knowing

what to do next.

thank you

Becky in ks.