Two thoughts: Are you saying that a teacher should be able to babysit more that 28 students or that a teacher shouldn't be working as a babysitter? It seems t

Two thoughts: Are you saying that a teacher should be able to babysit more that 28 students or that a teacher shouldn't be working as a babysitter? It seems to me that as a practical matter "babysitting" is an inherent part of a teachers job (particularly in lower grades) and that's probably something that they cannot do efficiently much above 28 students. Second, my understanding is that teacher to student ratios is one of the major metrics used to identify the health of a school. Granted, since I don't personally know the data behind that, this is effectively an "appeal to authority", but it still strikes me as reasonable to put some stock in the expert's opinions.