Jill,
The math related website that you come across every time you search for my chip website is another one of my websites. I put that website together while in graduate school at the University of Georgia. I use some of what is there in my teaching of high school students every year. My chip website is pretty easy to remember: lukechip.tripod.com . There is no 'www' in the URL.

There is one other 'Luke Rapley' that I know of but he lives in Tasmania. I do not think I am related but you never know.

Thanks for the kind words. Keep on chipp'in,
Luke R-3867