Definitely we should listen to our students in class, despite we may think it is something childish or nonsense.
I’m referring to the fact that for example the teacher is speaking and presenting something and then a kid puts up his hand to say something. We should stop our speech tentatively, I would say, and listen to the kid: if something is important for a kid, it is also important for us teachers.
Later we tactfully can explain to the kid that he oughtn’t to be concerned about that, for example.
In class we can do like a traffic officer: direct the traffic of possible questions. / Photo from: untitled. commons wikimedia org