University students: how do you handle politics in the clroom?

I have learned that one of the most important things in life is a level of skepticism. I understand that you don't want to cross your professor but the best thing that I do is keep an open mind to what they're side is (they have strong reasons why they believe so), stick to the facts when explaining my side, not get too pionate about it, and just agree to disagree. People with opinions that strong aren't going to change how they think if they don't want to no matter what you do. As for the placement of opinions by professors... it's their clroom and that's where your skepticism comes into play just don't readily believe it. Ultimately though, it's their cl and your grade in their hands so I let them have the power for a little while if its not directly hurting anyone.