If you know your professor is wrong (or possibly telling you theories that are seen by most of the field as invalid, supported by controversial and weak evidence, etc), what do you (or would you) do? Correct them? Keep your mouth shut and figure out what they want, then forget everything they taught you? Report them to their superior immediately? Report them at the end of the semester?

Would you be bothered by this?

For those who need an example: Say a professor taught you that Queen Isabella didn’t want Columbus to set sail for India because she believed the world was flat. (No, that’s not a real example from my life. This is a hypothetical question, not me venting or gathering advice).