S.E.
I agree with Angie, steer clear and get him involved with some activities outside your neighborhood. He could get involved with soccer, the Crystal Lake Raiders football teams will be starting up any time. He would be able to do the touch football http://www.clraiders.net/ My son played for the Raiders because we were home schooling him when he wanted to play in 8th grade. It was a great experience.
Another physical activity would be karate. (My son did this too) A good school teachs them control in any situation, not just physical. That also could be a father son activity.
YMCA has day camps and what about the Crystal Lake Park District they must have something, I know Woodstock does.
Also by joining the YMCA you would meet lots of moms with kids your age.
Soon Summer Bible Camps will be starting, most are a week long and you can always attend more than one. Don't know which church's in Crystal Lake have them. I do know Woodstock Assembly of God Church will be having a week long Sports Camp for all ages. ###-###-#### This is a non-denominational Camp.
If you are planning on home schooling your children I can put you in touch with a home school co-op that has get together. The co-op is located in Crystal Lake. I just brought that up since you were a teacher and a lot of former teachers end up home school there children at least the younger years. I loved the years I home schooled. He is now 17 and out of high school and on his way to study in the ministries.
Well there is a couple ideas. Good Luck!
S.