In all fairness to balanced presentation, they ought to have some Marine veterans from WWII, Korea, Viet Nam, Gulf War, Iraq, and Afghanistan come in and talk a bit about what the flag represents. (sorry if I did not name all of the applicable wars/conflicts that should be represented.)
Balance...something the Left is incapable of.
I thought you were going to say "...come in and stomp on the teacher". But talking to the students might work too!