And, please, don't tell me having prayer in the cafeteria/gym/multipurpose room at lunch recess is an option. 20 minutes of prayer takes at least 15 minutes before and 15 minutes after to set up. If kids have a 20 minute lunch in a 40 minute lunch / recess break, the room can't be used after lunch because of cleaning up and whatever class uses the room after prayers won't get it until at least 15 minutes later. 

Honestly, the notion that those who have NEVER worked in a school know better than those professionals who work in a school should show some hubris. And that includes you, Barbara Hall, you overpaid bureaucrat who gets paid to tell teachers how to do their jobs.