M.R.
You might want to try your local High School. I send my almost 4yo to a High School that has a child development program. The HS students are learning about daycare/preschool and a teacher is there the entire time. He really enjoys it, it is a perfect introduction to real school and it is very inexpensive. The only downside is that it isn't very long, only about 1-1/2 hrs./day. Our HS had a separate program for 2-3yo's and 4-5yo's but they recently combined it so all the kids can go up to 4 times a week. Hope that helps.