Flowing is simply the specialized process of taking notes in a debate.
If you want to do well in debate, it is critical that you learn how to flow.
Flowing relies on note taking but it is different from note taking in that instead of writing one note after the other in a vertical manner you are going to take notes so that you can trace the flow of the arguments across the page.
This basic look flow allows you to see what arguments have been made and what arguments have been responded to.
Now you can see what arguments have not been responded to.