Our school has gone to an hour lunch. 1/2 hour to eat, half hour for tutoring, or finishing up assignments, or extended time on tests...wednesdays many clubs meet during that half hour (but that only works if you are only in one club).

Benefit is that teachers now have a daily 1/2 hour office hours kids can go to. Seniors and juniors who eat off campus have no excuse to be late (they can text order in, eat, and return in an hour). Making up from an absence is so much easier.

If you have nothing during that second 1/2 hour the kids play in the courtyard (soccer, volleyball, etc). Teens need to move around too!