Discussing moral absolutes is effective in a classroom to encourage critical thinking and to help students develop a chosen, rather than an indoctrinated, moral ideology for themselves. Schindler’s List is particularly effective here since it presents readers with two ethical questions that in fact have right and a wrong answers: was it ethically moral for the Nazis to attempt to eliminate ethnic Jewry, and was it ethical for Oskar Schindler to resist this attempt? The lesson here is that there are moral absolutes despite one’s political or religious background. The lesson becomes even more effective when the follow up question: were Goeth and Schindler moral men is asked.

From 1933 until 1938, most of the people held in concentration camps were political prisoners and people the Nazis labeled as "asocial." These included the disabled, the homeless, and the mentally ill. After Kristallnacht in 1938, the persecution of Jews became more organized. This led to the exponential increase in the number of Jews sent to concentration camps.
When the wagons were forced open, a terrible sight was revealed. The Schindlers took charge of the 107 survivors, with terrible frostbite and frightfully emaciated, arranged for medical treatment and gradually nourished them back to life. Schindler also stood up to the Nazi Commandant who wanted to incinerate the corpses that were found frozen in the boxcars, and  arranged for their burial with full Jewish religious rites in a plot of land near the Catholic cemetery, which he had especially bought for that purpose.
In addition to this camp, which has been fairly well-documented, the Nazis also briefly maintained a Gypsy (Roma and Sinti) camp.  Although both prisoners and Nazis commented upon the musical skill and creativity of these inmates, little documentation exists of their musical production.  This is also partially due to their isolation from other inmates, and their extremely harsh treatment by the SS, second only to what was meted out to the Jews in cruelty.  Nonetheless, there are several references to an orchestra, as well as to less formal musical groups.

Initially the new facilities were "underutilized". From April 1943 to March 1944, "only" 160,000 Jews were killed at Birkenau, but from March 1944 to November 1944, when all the other death camps had been abandoned, Birkenau surpassed all previous records for mass killing. The Hungarian deportations and the liquidation of the remaining Polish ghettos, such as Lodz, resulted in the gassing of 585,000 Jews. This period made Auschwitz-Birkenau into the most notorious killing site of all time.
From 1942 onwards, the camp became the site of one of the greatest mass murders in the history of humanity, committed against the European Jews as part of Hitler's plan for the complete destruction of that people (the Final Solution). An estimated 1.1 million people were killed or died at Auschwitz-Birkenau, the vast majority of whom were Jewish men, women and children deported from their homes all over occupied Europe. They were transported to Auschwitz-Birkenau in overcrowded cattle wagons, and upon arrival sent immediately to their deaths in the Birkenau gas chambers. Their bodies were afterwards cremated in industrial furnaces in the crematoria.

Treatment inside the concentration camps were horrible. Prisoners were given tiny rations of food and forced into physical labor. They often slept more than three to a bed without pillows or blankets, even in the winter months. In many concentration camps, Nazi doctors conducted medical experiments on prisoners against their will, in many cases killing the prisoners in the process.

After some time off to recover in Zwittau, Schindler was promoted to second in command of his Abwehr unit and relocated with his wife to Ostrava, on the Czech-Polish border, in January 1939.[13] He was involved in espionage in the months leading up to Hitler's seizure of the remainder of Czechoslovakia in March. Emilie helped him with paperwork, processing and hiding secret documents in their apartment for the Abwehr office.[14] As Schindler frequently travelled to Poland on business, he and his 25 agents were in a position to collect information about Polish military activities and railways for the planned invasion of Poland.[15] One assignment called for his unit to monitor and provide information about the railway line and tunnel in the Jablunkov Pass, deemed critical for the movement of German troops.[16] Schindler continued to work for the Abwehr until as late as fall 1940, when he was sent to Turkey to investigate corruption among the Abwehr officers assigned to the German embassy there.[17]