the first thing i'd do would be to filter it all through a grain of salt. 16 can be a super-sensitive age for a lot of girls, and it's a real possibility that this teacher is gruff or sarcastic but not actually singling your daughter out, and that some of what she perceives as being personal attacks aren't.
drama is endemic in high school, even among quiet studious kids.
it's hard to imagine a teacher saying something that pointedly mean to a kid in class. my money is on him embarrassing her by saying something about the hiccup and making her feel in the spotlight, and the mirror comment is just where her embarrassed brain took it. or at the very most, it was a joke but she didn't take it as such because she was, naturally, embarrassed.
but if indeed she is the victim of a viciously Mean Boy teacher, she needs help.
the fact that she's afraid of going to the counselor because then all the other teachers would be mean to her too is pretty overblown. i hope you don't encourage a budding persecution complex.
the best possible scenario would be for you to help her handle it herself. do some role playing in which she becomes comfortable responding to that sort of nastiness with 'excuse me for hiccuping aloud. it was involuntary, but your response was not. why would you say that to me?' or 'i don't think it's appropriate for you to talk to me that way.'
if she's absolutely mortified at the notion, you can step in, but be aware that at her age she's GOT to start advocating for herself.
you need to go to the teacher. do not escalate it unless and until you get a nasty or negative response. set up a meeting with him, tell him what your daughter reports and ask him if it's true. be open the very real likelihood that it's only partially so at best, not because your daughter is a liar but because she's hyper-sensitive to criticism or being suddenly in a negative spotlight. tell him forthrightly but without drama that his words and actions had a negative impact on her, and ask him how he plans to handle it.
you'll almost certainly get a startled 'i'm so sorry, i had no idea my ribbing would come across so harshly to her. i'll certainly apologize to her and be more careful in the future.' if you do, accept it, and encourage your daughter to accept his apology gracefully.
you can always go to the principal if you feel it's absolutely necessary, but teenagers are a tricky and moody group to work with, and unless this teacher really is the monster you daughter perceives, we're going to strip the schools of all the good ones by harping on them for every overblown slight.
my brother, a high school english and drama teacher, was once reported for 'lewd behavior' for falling asleep during an evening rehearsal (which he was supervising without extra pay) leaning against the wall seated with his legs crossed.
i had a little missy sign up for a homeschool enrichment shakespeare class, and drop out because it was 'too immoral.'
shakespeare.
heh.
ETA julie F FTW!
khairete
S.