DD is in Sixth Form, her form tutor is new to the school, seems disinterested - can't even be arsed to read out the daily notices etc. She doesn't teach DD but DD is becoming increasingly upset by her. It is a highly selective school and behaviour is extremely good.
What is really bothering DD is the constant stream of bitchy remarks directed at DD and other class mates. For example, DD wore a skirt to school one day and was told it was too short (just above knee length she is very self conscious about her legs) and she was just wearing it to impress the boys (they have General Studies with a nearby boys school). DD was late for PSHE as she was helping her friend find a lost item, she was told that she is constantly trying to avoid PSHE (first time she has ever been late). She seems to particularly dislike DD.
Teacher has also been threatening the girls that she will write them poor UCAS statements if they don't behave but they are doing nothing wrong.
In my opinion teacher is quite young (27) doesn't seem to like teaching and has no aptitude for it. I doubt she will last (girls in her subject complain she is the worst teacher they have ever had). I would be inclined to just ignore it but the UCAS remark made me think that she is vindictive (and could easily damn DD with faint praise if nothing else) and I wonder if I should email the head of year - though he is new to the school and just started a few weeks ago. Should I just ignore it and do nothing?