Respect: Demand or Give?

Some people say that you should demand respect from your students. I think that you should always start by giving them respect. When they see that you're willing to treat them like an adult (this is at a high school level) then they're more willing to cooperate with you in the classroom. Most of the time, that is the case.

However, when you are giving a student respect and they are choosing not to reciprocate, that is when you demand it, or rather, command it. You are the teacher. You are in control in that moment. You do not need to yell or shout in order to get them under control. You simply tell them what is expected of them and see it through.