I thought you explained that just fine.

I'm not sure what makes someone a good teacher or story teller.

I think you tell a story or communicate an idea by making sure you hit all the key points in order, and giving enough back story someone needs to understand.

My dad drives me crazy when he tries to teach me something because first he'll explain how the thing was invented and how it is made before he'll just teach me how to use it.

I like to be taught by a simple process-- do this first, then this...

You also need to be able to understand your audience and relate to them, to talk to them in the way they will understand.