I think the FIRST Website Award criteria is great to follow as guidelines if you're entering or not. There's a lot of common web usability sense in there that every website
should (but of course doesn't) follow.
FIRST realizes that a lot of school boards do not allow posting of student names, individual contact info or photos. They'll probably make an exception, you can send an email to
http://usfirst.org/contactform.aspx to see if they would. Worst comes to worst see if you can get the legal guardians of students to sign a consent and a release form.