yes, i know teachers are mandated reporters. my mom taught for 35 years. and i remember my kindergarten teacher getting arrested because there was a child in her class who was abused. (she didn't know about it -- bruises were hidden under clothing, so she wasn't charged, but she was pretty humiliated.)
you're right, JC, there is no excuse for that. there are some ignorant teachers in this world for sure. language like that is highly unprofessional, regardless of where you are and who you're talking with, not to mention just plain wrong. my ex taught preschool and even at home he'd never refer to his kids like that, even the ones who bit, punched, kicked, hit, etc. anyone with half a brain understands that a child is merely a product of his/her environment.