After searching the web, discuss the answers with your colleagues and if anyone is in doubt you can visit the local library. Tell me about one of the concentration camps. Tell me about one of the interviews from a Holocaust survivor. You will now present the information you have learned to the class. Very brief conversations.
Some students are disinterested or distracted.
Only one or two persons actively participate. Conversation not entirely centered on topic. At least half the students confer or present ideas. Attentive reading of documents and listening. Some evidence of discussion of alternatives.