I want my math teacher to speak English.
Why do you want him to speak English?
I get sick of hearing him speaking his mother tongue, I feel like he is putting me down
If they are teaching an English speaking classthen they should speak in English to the students. Its not a good learning environment if you can't understand what your teacher is saying all the time.
So if I make a complaint about my math teacher, I will be the one to be punished?
No, you shouldn't be punished. The school needs to tell him that he should be speaking English.