Brian,
I tell new teachers to always keep in mind that they are in charge, it's their classroom, and class expectations are aligned with what the instructor thinks is best. Of course, student's challenge this all the time, but my point is even with challenges, we set the standards that students have to obey. How we go about reinforcing that can occur different ways, but there needs to be a plumb line for the instructor to reference things against.
Barry Westling
