Something that might not be considered is that the teacher can be asking a question to improve the student's performance. As an example, in the student presentation of their
Stock Market Game's portfolio. There was a group that was doing very well in the class. However, the presentation was flat. So yes, I did ask something, to help their presentation, that I hadn't asked the other, mostly poorer performing groups. I asked them, "If you had to sell one of the holdings in your portfolio, what would it be?"
They really came alive with that question. It clearly engaged them, and the rest of the class, as they answered the question with a lot of detail.
Yes, Stock Market Game, I realize that some here are offended that something other than the 3-Rs' is being taught, or that classes are not purely Chalk-n-Talk. Things like Stock Market Game are what you get when you 1. Hire an MBA to teach 6-8, and 2. tell that person to come up with an elective class, with less than a weeks notice.
A similar thing might happen with a 2nd amendment presentation. I might also ask a question, that I know the kid can knock out of the park, just to make clear that I am not going to go easy on kids who bring up my pet topics. an example of that was a kid, in a personal finance class, that made a presentation (yes, our school is big on presentations). She talked about the savings from riding a bicycle instead of driving
(spoiler, I commute on my bicycle unless it is raining, or I have something heavy to carry). I didn't want it to look like I was just giving her a good grade for picking something that I am interested in, so I asked her, "does it really save any money if you don't get rid of a car when you get the bicycle?"
She handled the question well and overall, the presentation was good, for her class level and the class as a whole.
I, as a known gun nut, have been asked to cover the social studies (history) class for the 2nd amendment. That is similar to when they ask the local newspaper publisher to come in when they cover the Freedom of The Press portion of the first.