L.S.
You should call Cheryl Beck at The Learning Garden Preschool. I was the Asst. Director at the school/Creative Kids for many years and it is an amazing little gem of a school. Jackie is the Head teacher, and has also been with Creative Kids for many years. She is fantastic!
The school is located just east of Barrington and north of Olympic. You can reach Cheryl at ###-###-#### and you can check out the web site at www.mycreativekids.com.
BTW-They also offer transition classes that your little one could do now that would help make his transition into preschool smoother.
Good Luck! L. Saul