It goes without saying that all of us have different life experiences, political beliefs, and professional practices.  These serve as our "lenses" through which we inevitably design and facilitate lessons.  Effective teachers are aware of these differences and the potential impact they have on students as both learners and people.  How a student receives or interacts with a lesson is affected by these lenses (theirs and yours).  We can't drive content  in a vacuum.  When we are more aware of these lenses, students are more likely to benefit from our process.