When dealing with High School students it is good to challenge their misconceptions about history. Historiography is about the idea that history is a process, rather than a narrative. A good way to start the ball rolling is to ask 'How will the events of September 11 be viewed in 50 years? 100 years? etc. Get the students to start thinking about history as being created and re-created as the years go on. I like to have students look at the 'History Wars' in Australia. The debate over colinisation/invasion/black armband view of these events etc. Show students a variety of historian's opinions and have them debate which ones they think are most reliable. Teach them that history isn't 'reading' it's 'doing'.