'Coverage' & 'Cut Away'

Coverage: Shooting one scene with a variety of camera shots, from different angles, and getting enough takes to provide the 'Editor' with enough choice. Using this technique is important because with this you can show lots of action happening in many different ways, keeping the audience interested.

Cut Away: Shooting the main action, then cutting to another shot that shows different action in the close vacinity, then cutting back to the original action. This is important because you may need to show a reaction shot, ie: There is a bystander to a fight, but the audience doesn't know he/she's there until the Cut Away shot is done. This technique is also useful to cover up missing bits of footage from a couple of shots of the action.