Mostly the planned crafts and games are done when the younger ones are having a morning nap. If they no longer nap then get one of the play yards and section off an area where they can play for a period of time while the older ones do a craft. Alternately, use the play yard to section off an area the older ones can ask to go into to play. They must keep all items in there and ask to come in and out so you can be sure supplies are left behind and no little ones sneak in.