Isn’t your teacher lied to you ?
Isn’t your teacher beated you for no reason ?
Isn’t your teacher get angried to you without a proper reason ?
Isn’t your teacher used you and then didn’t minded you ?
Isn’t your teacher give too much punishments to you ?
Etc…
But still why ?
(Am not asking this to criticize anybody or disrespect others. Just a doubt formed in my mind as a student. If am asking anything wrong please correct me)
They could do this for a number of reasons. They may be jerks or are dysfunctional teachers. And no, this is not normal, and no, you should not be okay with this. The best action to take depends on your current situation.
What country are you from?
India