I know what you mean. I’ve heard different perspectives on how much a teacher should share about their opinions on issues. I come down here - a teacher should keep their personal views as much to themselves as possible. Obviously it’s impossible to be perfectly objective or to perfectly hide your biases (some you won’t even be aware of). And your values will impact what you emphasize in each lesson and maybe information you include and leave out. But even with all of that, most teachers can do a pretty good job of keeping the kids uncertain of their opinion if they want to.

The thing is, even if you preface your opinion with “I’m not saying you should believe this, but this is what I believe” you will impact their views, at least slightly. You’re the person at the front of the room, the adult who they (hopefully) respect and your opinion carries weight.