Build a Street Build a Town
There are 8 Team area's which can be used and once your students have created thier buildings, the central corridor structure can be demolished to reveal a road complete with road markings, Thereby showing your students that they have actually created a street. Students can then explore each others structures. Or even delevop the map further.
Note: there are border blocks below the Student build area SO if opening this world up to expore after the inital build lessons I would suggest removing these blocks from both the ends of the corridor building to allow free movement.