I don't have specific femdom teacher tease stories at hand. However, generally in such stories, a dominant female teacher might tease students in a non - harmful, more of a psychological way, like by giving challenging tasks with a bit of a smirk or using sarcasm to make students strive harder. But this is all in the realm of fictional or consensual role - play scenarios in some stories.
Well, I can't really provide you with a real femdom teacher tease story as it's not a very common or appropriate mainstream concept. But if we were to imagine, perhaps in a story a femdom teacher might tease a misbehaving student by making them stand in front of the class and then asking them difficult questions in a rather taunting voice, all as a way to teach them a lesson in discipline.