Organisational – perhaps the biggest enclosure of all is the schedule (timetable) that governs learning. Moving kids around each time a bell rings every 50 minutes, only reminds them that they are cogs in an industrial machine, and destroys any attempt to deepen learning, so get rid of the atomised schedule. While you’re at it, get rid of the bell too. And the tannoy announcements. This is a learning commons, not a prison. Commit to giving students the freedom and responsibilities of adults, and they’ll behave like them.