Boro Park Girl:
During The first few crucial days of school, a good teacher will give ALL students an equal amount of extra attention.
After that, a really great teacher would have already figured out on their own how to deal with whom. I.e. who she needs to be a bit firm with, or where she needs to be soft, and who can use a bit of tlc, and where to turn a blind eye, etc… If a teacher can’t figure out that much on her/his own, then A, s/he probably shouldn’t be teaching in the first place. And B, all the prep in the world will do more harm than good, which brings us back to A.