She's not exactly a terrible teacher, but she doesn't relate to students well, and the way she teaches in class discourages us from participating. For example, when asking someone to translate a sentence, after someone spoke out and tried to translate, she interrupted the student saying words to the effect of "No, that's wrong, you've forgot about this." Obviously a valid point, but her tone and the way she cut across was rude, and when she asked the next question, none of us really wanted to give an answer. I could find other examples, but I don't think it's relevant: the point is, the way she teaches - not the content itself - is problematic because it creates a bad environment in class.
The first question is: is it a bad idea to approach her directly to talk about it? Should I bring it up with the department office, or the department head, instead? I figured it would be better to talk to her in person, rather than flag it up with the department, as it's not technically their business, and maybe it could get her into trouble. But I'd appreciate advice on this all the same.
The second question is: if I do talk to her about her teaching style, what's the best way to go about it? I was considering visiting during her office hours with 2 or 3 other students, and trying to explain why we're having issues with her teaching style. Again, if you think there's a better way, or would strongly advise against this, please let me know.