Responsibilities of instructors to students when teaching controversial subjects When teaching a course on a topic that might be controversial, what are the responsibilities of instructors to facilitate an open learning environment?  If the instructor has a strongly held opinion, is it appropriate for the instructor to structure the course and the readings around this opinion?  Does the instructor have a responsibility to structure the course in a way that is agnostic about the topic?  When selecting the readings and the lecture schedule, does the instructor have a responsibility to give equal time to opposing viewpoints, if those opposing viewpoints plausibly have equal intellectual merit?

I'm familiar with the notion of academic freedom for instructors, where instructors should be protected from external influence (from outside the academy: e.g., from politicians) in their ability to shape their courses and express their findings and opinions.  Is there a corresponding responsibility to protect the academic freedom of students, by structuring courses so that they do not make students feel uncomfortable expressing views that disagree with the instructor's?

Are there any guiding principles or resources for how these issues should be navigated?  What are the social norms within academia?  Are there any lines that, if crossed, might lead to disapproval from a significant fraction of fellow academics?  I'm mostly familiar with engineering/science/mathematics courses where this sort of issue rarely comes up, so this is new to me.
If the students are being assessed by you, some (most?) will start to tell you what you want to hear in order to get the highest grade. This is rarely what we as educators want in our students. We want to build within them critical thinking skills.

Controversial issues are common in some fields. For example, one of the subjects I teach is Business Ethics and I have clear beliefs and values in this area. Is it OK for me to focus on the arguments in favor of my view and discount competing arguments? No, it is not.

Can I tell my students my opinion? Opinions differ on this but I believe it is OK, as long as it is done very carefully with LOTS of evidence that my opinion is wrong. Again, students must be taught to think for themselves, including how to critically evaluate what they consider right and wrong. If I just make my points then it is not education, it is indoctrination and that is not what higher ed is about.

As far as social norms, I would say that if you are trying to get your students to 'believe' anything, then you are doing it wrong. If you are trying to get them to think critically, then you are doing it right. If the students feel they must agree with what you say, you are doing something wrong. If they feel like they are getting balanced information and a class ends up with many different opinions, then you are doing something right. If everyone is thinking the same, then nobody is thinking...and that's not good for anyone.