"What's your name?"
I get the question all the time. It's why I carry a name magnet and put it up every day.
At the beginning of every period I introduce myself. I wait until the class has settled (read: is silent). I pronounce my name (sometimes I do this a couple times) and tell the class that they may call me Ms. A. Then I move on to their assignment for the day.
Last Thursday I had a 7th grade science class. It was 3rd period. I did my usual introduction, and we were just about to go over the answers to their study guide when a boy raised his hand and asked me that question. Yep, he asked me my name after I had just spent two minutes introducing myself.
I shook my head at that. There's only so much I can do. After that, I let them remain ignorant.