I don't know how many of you subscribe to the NCTM Mathematics Teacher magazine, but that that one of the must-haves for an AP Stat teacher IMO. Every month, there is at least one article that can be adapted to the AP classroom. On the up-side, while it is an expensive subscription, you get access to the online archives for free :)
The November issue was a focus issue for Statistics and as I browsed through, I realized that many of the "Media Clip" articles are *perfect* worksheets for AP and Pre-AP classrooms. The November issue had a probability problem and a confidence interval problem and I am expanding the probability problem to use tomorrow in class.
The December issue had a piece-wise function and a proprtions problem. The best part of these articles are that they are tied to a newspaper clipping, so it's very motivational for the classroom teacher to look to the "real world" to write a problem.
The more I think about it, I wish our curriculum person would type these up every month and pass them out to the appropriate teachers - what a wealth of knowledge!!!
I also use the calendar problems as "Weekly Challenges" in my Geometry class - Since you can cut/paste from the online archives, I just open the calendar each month and copy the problems I would want to use into a word document for future reference.