Re: Is it proper?
If you were in the military I would tell you to "suck it up". As you are not, you have the option of leaving. It is proper to discuss your concerns with the senior student in the class - be sure to show more respect than you think necessary. If things do not change then leave. Study something else.
Or, give it time and you may grow to appreciate this teacher's way better than any other. Trust your intuition. Be respectful.