I have one bad grade that stands out: B in undergrad QM II sophomore year. the rest of my grades are A, A-, or one B+ in a grad class. undergrade QM II is a pretty fundamental class, especially bc i want to do theory. I do have an excuse tho: the entire grade for the class was midterm then final, I got an A on the midterm, got cocky, stopped going to class, then teacher switched final date to the last day of class (and the teacher is old and doesnt use internet), so i didnt know when the final was, and so i bombed it.
My question is: should i tell this story somewhere on my application, adding of course how i was young and immature and now Ive learned my lesson and now i always go to class, etc?
or shoudl I not draw attention to this bad grade?
thanks