Click on your topic in English or Spanish. Topics are nicely explained.
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I highly recommend:
Guide to Communication Milestones which has developmental guidelines for all your speech and language categories such as Feeding, Articulation, MLU, Pragmatics, Vocabulary and more.
Lakeshore Lesson Plans - FREE templates, lesson plans and printables for preschool
This hand out about Preverbal Skills (from Belinda Hill, SLP) is nicely organized and can be used as a very helpful guideline for the therapist and the classroom teacher. I developed a AAC plan which includes the key areas listed in Belinda's handout (In Ricki's Printable Forms.) Belinda provides other handouts which explain terms in the speech field, e.g. What is receptive language, What is expressive language?