Resources: None How it works: Students have to think of a Killer Question- a question that is 'impossible' to answer by any of their peers! (I don't mean it is impossible- but as in VERY difficult to answer!) However, the student asking the Killer Question must know the answer and it must link to the objectives of the lesson. Variations: Give students keywords they must include in their questions or answers? Get students to ask the teacher the Killer Question!