I'm a newbie, but I don't think there is a difference in stoma care techniques, whether it is a colostomy or an ileostomy. The info in the chart was wrong, and that happens, but that isn't really the issue, is it? If your daughter's difficult teacher is like mine, she would've continued asking questions until your daughter was unable to answer one, and then pounced and said, "You should've known that!" And that's silly, because if your daughter already knew what an LPN is supposed to know, or if she already knew how to find out on her own, or if she were psychic, then she wouldn't need a teacher at all.
In my experience, it is the norm to ignore mistakes in the chart or mistakes by colleagues. You just make sure you don't repeat 'em and keep on going, like if someone plays the wrong note in an orchestra, you just keep playing and hope nobody notices.
Newbies notice mistakes. It distracts us and we don't know how to continue or what to do, so we ask questions, and in the asking we reveal sometimes that the emporer is naked, and the senior members hate that. They know, but we can't *say* it because that's disloyalty. I saw a physician order morphine when he had the patient's chart in his hand and it said she was allergic to morphine. My classmate caught it, and whispered it to me, but she didn't tell our instructor. I mentioned it to our instructor, but I don't know what happened after that. Later, I saw the nurse give what looked like Tylenol. Was the physician called, or ... ? I still feel strange about that. We're not supposed to ask; we're not supposed to tell ... that seems to be the norm.
The purpose of this instructor's comments was not to educate your daughter about patient care. I think the purpose was to haze her, to "help" her become a valued member of the profession, and to "teach" her we don't ask questions about the chart. This teacher must really have strong feelings about your daughter, to spend so much energy in "instructing" her. It could almost be flattering, in a sick and twisted way. Your daughter should get some kind of award, a Purple Heart or something ... she is having to deal with a lot. Thank goodness she is almost done with this rotation!