I suspect you're right. It was apparently preparation for reading "Night" by Elie Wiesel.
re: “It was apparently preparation for reading “Night” by Elie Wiesel.”
Exactly - I think this teacher was trying to put Wiesel’s book in context so her students can have some idea how such a horrible thing as the Holocaust could happen. I don’t see this as her affirming Nazi beliefs, but informing her students what their propaganda said.
I had a professor who collected Nazi, Soviet, KKK, etc. propaganda pieces, posters, art - in order for us to see how sick this stuff was. Not to promote it.
As I said before, without more info, I think the jury is still out on this teacher as to whether or not she should be reprimanded or fired.