In Calculus we've "learned" the IVTh a bit ago, but as in all things, once we come back to it, students seem to have a hard time explaining what the theorem was. As I was talking to a kid today doing corrections on a section quiz, I gave her an example and asked her to match up my scenario with the terms of the theorem.
This seemed to help her (but then I did that at the start of the topic also), so I decided to make the following worksheet for the rest of the class. I think this will be different than me just relating a story because the students actually have to go in and match up what goes with what. Here's the sheet.