Using visual activity schedule with special education to improve their communication skills.

Using visual activity schedule with special education to improve their communication skills.

I need to find study that examined the impact of using VAS with SPED to improve their communication skills. there are several question to follow to write the review. first answer each question then write one page literature review. please, attach the file. ( include the question and example.) important note: I need the study which you make the literature review from.