I like what Stuart Little has to say on the subject, when he agrees to teach a class as a substitute for a sick teacher:
"I'll make the material interesting, and the discipline will take care of itself."
That Stuart Little is one smart cookie!
Seriously, if teachers are banging their heads on the same issues day after day something needs to change. Maybe it's the disciplinary system or the teaching style. Maybe there is an issue with a particular child or children. A child who gets disciplined constantly is not going to feel very good about themselves, which only feeds the problem.
