Everything you need to understand or teach I Will Bear Witness by Victor Klemperer.
Victor Klemperer wrote his diaries during the twelve years of Hitler's rule. The English version of I Will Bear Witness: A Diary of the Nazi Years, 1933-1941 was published in New York by Random House in 1998 (with a second volume covering the years 1942-1945), but the diaries have an interesting history. After Klemperer's death in 1960, his diaries were taken to the Dresden State Library. Walter Nowojski, a former student of Klemperer's, found them...
I Will Bear Witness: A Diary of the Nazi Years, 1933-1941 Lesson Plans contain 113 pages of teaching material, including: