C.B.
I don't know of any schools in the area that will let your kids start "real" school early, but I agree with the prrevious post to never underestimate the power of play. Having said that, CCS is a private school in Stockbridge. We sent our son there for 3k. It was run like "real" school. They had music and computer lessons, daily class work, chapel once a week, and he learned a LOT!! Good luck!