I want to know if my theater teacher always get angry before a show
Why do you think your teacher gets so angry?
A lot of time the cast will kind of brush her off to keep practicing their lines and she needs to get angry to get their attention.
Needing to get everyone's attention is understandable but actually getting angry at the students isn't okay. I think they need to realize they're stressing too much and calm down. Just yell to get everyone's attention then go back to being calm.
I have to think about it and I'm sure you have a point.
Her students should learn to show her more respect. If she can't get their attention, then she might need to try disciplining them. You could help her by telling your classmates to pay more attention, she would get less frustrated the.