We include everyone from Kindergarten up (including a few High Schoolers) in our rotation in multi-aged groups. Our situation is a bit different than most because we are a mission (although all of us should consider that our focus, I think). We have 25-40 attending on a Sunday and divide it never into more than 3 groups (that's all the teachers and all the space we have). The multi-age format is much more like real life than a bunch of same aged kids together, although it does mean some lessons are more perfect for one end of the spectrum than the other. We try to have enough variety through the rotation that everyone has their style enough times to really get the message. Blessings as you develop your program. Sharon