My time as a teacher as well as my own studies have convinced me that moving away from the village model was a mistake - children in groups easily self regulate and self educate given minimal direction from a teacher (and powerful guidelines for timeboxed schedules), a role easily filled by the "wisest" in a group (the elderly).

Somewhat contradictorily, it's far easier to manage, teach, and set straight (punish/reward) 15 kids than it is 2. You have to be a falcon for bullying though - spot it from ten miles away and strike it at 100 miles an hour.