When I was in the police training academy, instructors tried to teach us ground fighting tactics that were simple yet effective. Reading about a specific technique is one way to learn. It can be useful when someone provides verbal instruction. It is also helpful to have an instructor walk you through a specific application.
But, seeing the technique applied with devastating results in a real life video-—now that reinforces learning.
The following video is of a Kuk Sool instructor named Jay Lee who was in Houston filming a training video for a "local police department" at the time of the incident. Our class roared when we saw this: