That’s possible, to that end the pre-school my youngest attended had a rule of two teachers per class so at any given time one could lead the class and the other watch for troubles since young kids can be volatile at times if they want something right now. Not good if the kid is that misguided to the point of outright violence, but at the same time kids will climb the cubbords sometimes and you need to be able to take them off or catch them if they fall. If the teacher is not physically capable of that then they need an assistant in the room.