180 degree, shot reverse shot and match on action rule

We were asked to create a preliminary task as part of our coursework that included; a scene of a person walking through a door and having a conversation with another person. In this we had to add: 

The 180 degree rule

Which is consists of an imaginary line called the axis, which connects the characters  by keeping the camera on one side of this axis for every shot in the scene.The first character will always be frame right of the second character, who is then always frame left of the first




















Shot Reverse Shot

The camera has a mid shot of one character and we a shown the back of another. Then the camera reverses to the another character and we are shown a mid shot of them. This makes it seem as though they are having a conversation. 



Match On Action

Match on action is an editing technique for continuity editing in which one shot cuts to another shot portraying the action of the subject in the first shot.