Tired 15 year old son enters living room and says, "Mom, what does persuasive mean?"
Mom: Well, when I was on the phone with your teacher trying to get her to change your test grade I was being persuasive?
Mom: (Offers more formal definition.)
Son: Huh? (He says this a lot.)
Mom: Tell me why you need to know.
Son: I'm supposed to write a persuasive essay.
Mom: Oh, well then you need to write a 5 paragraph essay that tries to convince somebody of your point of view.
Son: Five paragraphs?!
Mom: It's due tomorrow isn't it?
Son: Uh... yeah.
Of course it is.
Back with knitting later.