Everyone is Entitled to Their Own Dignity

from "Get Better":

Take an extra second or two and be mindful of your speech.  

The students need to feel safe in your room to be vulnerable enough to contribute. Nobody likes to be embarrassed in front of their friends. Deal with a problem in a way that is as respectful as possible. 

Talking to a student privately is always better than addressing them publicly.  It shows your care and respect for them.  And if it doesn’t, bring it to their attention. They will likely be appreciative and change their behaviors for future rehearsals.

You are in charge of the classroom. But in this way it helps to maintain a community of everyone encouraging each other.