The disclaimer: I am not trained as a licenced Speech Pathologist. I do not have a medical degree and any information on this site is for resource purposes only. Always follow the advice of your Speech Therapist or Doctor.
That being said, I found this great website how to develop language using books. The basic concept is easy to achieve at home. Since the Charlotte Mason Method is based on classical literature and the humanities this method goes well with what I am trying to achieve at home with my son. Enjoy!