R.A.
My daughter went to Clarkston Co-op last year for the 4's program and loved it. Her teacher Mrs. French and Mrs. Tice are amazing and have been teaching pre-school forever. You do have to make a commitment to volunteer in the classroom 1-2 times a month depending on class size, but that also makes the expirience shared with you and your child. http://www.clarkstoncooppreschool.com/
I was not sure at first, because I had gone to full time outside the home to suddenly home. However, she had an amazing time and she learned so much even though it is play based.