This sounds like a common sense idea.
From Future Majority...
Sec. of Education Arne Duncan appeared on the Charlie Rose show a couple weeks ago discussing how rethinking the use of our nation's schools could open up several doors to our communities.
Secretary Duncan outlines his vision of schools serving as "community centers," in which facilities are not limited to educating children during the day, but also holding functions at night to improve the community. Duncan points out that schools are one institution in our society that has a plethora of resources -- "classrooms, computer labs, libraries, gyms, and pools" -- and they're all the taxpayers'. Duncan also sees this effort not falling solely on educators' plates, but instead being pursued by a partnership of school officials and non-profits, especially the YMCAs and Boys and Girls Clubs. School officials would have class from 9-3 (or thereabouts, depending on the school system's schedule), with the partnership of non-profits coming in and running "academic, social, enrichment, and even medical services" from 3-9.