Hi, Everyone.. Thanks to Chris for his comments to apstat-l. He made some good points.
We've just finished the unit on experimental design in my AP Stat class. I used Moore and McCabe, as well as the Moore BP/stat. We watched the Against All Odds videos 12, 13 & 14 on the subject and got lots of good examples from them. We also discussed the survey that Ann Landers did where 90% of the people responding said they wouldn't have kids again, and then the infamous Roper question (Thanks to Duane H.) that garnered the response that 1/3 of Americans have doubts as to whether the Holocaust happened. There are two topics in Rossman, #11 and #20 that cover experimental design. All in all the kids seemed to enjoy and grasp the concepts of how to avoid bias in surveys and experiments. We'll be doing our test on the unit on Monday, so I'll be able to see better how they did.
The good point of this unit is that they seem to be thinking a little more and not jumping to conclusions quite so rapidly.
BTW, it was interesting to watch their faces as I presented them with the statistic that 90% of the people in Lander's voluntary response survey said they wouldn't have kids again. The play of emotions was very apparent as they started to question as to whether their parents might feel that way, and then started to check out where that statistic came from. They were very relieved to find out that the Gallup poll on the same subject came up with a very different figure - if I remember correctly it is 84% of parents _would_ have children again. The release of emotional tension was quite apparent!
That's one thing that I like about teaching statistics - the issues are here and now and have an effect on the kids "where they live"!
Louise Hilton Bingham High School South Jordan, UT