C. C. Edwards has a Ph.D. in mathematics from the University of Wisconsin, Milwaukee, and is currently teaching mathematics on the undergraduate and graduate levels. She has been using technology in the classroom since before Texas Instruments came out with its first graphing calculator, and she frequently gives workshops at national and international conferences on using technology in the classroom. She is the author of "TI-83 Plus Graphing Calculator for Dummies" and "TI-84 Plus Graphing Calculator for Dummies" and she has written 40 activities for the Texas Instruments Explorations Web site...