My mother is a French teacher, she's very strict and scares the fuck out of students while keeping a playful style and maintaining a good learning environment.
She has no pity and will tell the kids down if they start acting lazy/annoying, other teachers don't understand how her students learn so much and act so respectfully, that's something I feel is awfully wrong with the U.S education system. The child is king, you have little sluts doing nothing in class because they're in the cheerleading team and boys in the football teams, they do nothing because teachers don't give a fuck and would rather let the child do as he wants rather than being strict