Are you saying that we could hear Thelonious Monk, Ice T, Steppinwolf, Madonna, Led Zeppelin, Miley Cyrus, Count Basie, Little Bow Wow, etc, in a music set? That crosses a lot of musical genres and would such a format pull in that many listeners, much less many high school student listeners. I could understand the block format and a student gets to learn about running a format which they'd have to stick with in real radio. If the graduating student got a job at WJBR or WSTW, they'd be limited to the format the station uses.
This is a non-profit station, supported by tax dollars of the folks in Brandywine School District. Seems you'd want some order to that varied format so the paying tax payers might want to tune in once in a while. Most adults and frankly I don't know any kids who'd listen to all those types of songs. Those who'd like a jazz format of Thelonious Monk, Basie, etc, may not be interested in hearing Modonna and Miley Cyrus. Those Ice T and Bow Wow fans probably aren't going to want to hear Basie or Zeppelin. So if you're trying to get student involvement would you want a block format, maybe changing each hour, but at least an hour block of a format.
Also will the station do any news or public service programming where those more journalist type students would also get some training and experience in gather, writing, editing, anchoring newscasts? If this is to be an educational radio station and not just a play thing for the kids, it does seem that a news element should be included as news may not be a key element to stations the kids now choose to listen to, but as news/talk is moving more and more to FM (and of course the NPR news/info stations that are mainly FM stations), those students who'd want a career in radio journalism should have an opportunity at this station too.