Explanation of Preliminary Task

The AS preliminary Task that I have been given is to create a continuity task which involves filming and editing a short clip. The clip has to include three techniques which are, a match on action, shot/reverse shot and the 180◦ rule,
The story line of the Preliminary Task  is to film a character opening a door, crossing a room and sitting down in a chair opposite another character with whom they must have a conversation.