If there are fewer students in each school, you can open those extra classrooms up to other educational programs, open to all community members, including kids. Rather than having just one option in each school, encourage a whole variety if community-focused programs to share the school space, so that kids have more diversity of options for learning. For example, the excellent King Open School of Cambridge got it's start as one room in the regular King School. Somerville could do the same kind of thing, sharing the public buildings with the public for MORE diversity of education. This way kids still get to walk to their local schools, and still be able to get the kind of education that works best for them, and they even could have the option to go to different programs each day, truly giving them the best education possible.