...
The briefing you gave to users that describes orally the purpose of the application and background information about the domain.
This briefing should be at most a page of information about the purpose of your application and any background information about the domain that may be needed by your test users (who may be classmates) to understand it. These are your notes for the briefing, so make them short, simple and clear, not dense wordy paragraphs. This is not a manual or quick-reference card. It should not describe how to use the interface.
...