Yes, the background of the assignment, which I suspect was minimal. The nature of the teacher's past lessions. She's not rewriting history, though imo she's approaching in from the wrong perspective. But I'd have to know more to fire her or remove her from the classroom. Which I suspect the school does.
Perspective? The Germans were led wholesale into Jew Hatred by the NAZIs because they saw (which coincidentally matches Alinksky’s tenet) someone they could isolate and blame for the between war troubles. It is nothing more than that - no EVIL there, no collective responsibility for anything other than as an addled convenience for Herr Hitler.
It (the ‘lesson’) was, and is, nothing more than instruction in hatred.
To defend this woman in this assignment is unconscionable.