As a high school teacher who has taught both AP Calculus and AP Computer Science and has worked with ETS, I'd like to respond to some of Lou's comments.
Lou's observation that high school teachers are afraid is correct. I believe that, for the most part, the high school teachers want their courses to reflect what is taught in the college level. However, they do not have the time and resources to study mathematics as college faculty have. Most AP high school teachers teach 5 courses with four different preparations and an additional responsibility such as study hall or cafeteria duty. Additionally there is a great deal of pressure from parents for their children to be successful (4's and 5's) on the AP exam. I know of one department chair at a very strong suburban high school who is willing to go out and talk about calculus reform, but will not introduce it into his high school because of fear of lower AP scores.
Considering these pressures, it is not surprising that high school teachers are slow to change. However if they are convinced that the reform movement is a better way for the students to learn and understand calculus, the teachers will change.
They are afraid and very concerned, but capable of change.
Ron Vavrinek Illinois Mathematics and Science Academy Math Team Leader 1500 W. Sullivan Road firstname.lastname@example.org Aurora, IL 60506 (708) 907-5964
Remember: "Even if you are on the right track, you'll get run over if you just sit there." Will Rogers