Teachers who haven't tried these super-classes wonder how it will all work - it clearly can work remarkably well, but only if the teachers have clearly defined team roles; for example in a three class space there might be a lead teacher, whilst another might focus on differentiation giving width and breadth to those who need it, and the third might be on remedial-repair duty - catching up those who missed a bit, or misunderstood a bit. A classroom assistant might also be sorting out logistics, checking that everything works and so on. The evidence emerging from these schools is compelling when it is done well. There are no hard and fast rules for these roles, but without them it is all too tempting to have three teachers doing a Dick Turpin lesson ("stand and deliver") in three different corners, or just as fatally have one teacher "in charge" while the others nip out for a bit of photocopying.
Children as making remarkable progress though when the "team' re ally sort out what they will each be doing - and with such a resource of other students on hand rules like "ask three then me" take a lot of the pressure off the teachers' shoulders giving them more time to carry out their role professionally.