Dan Kennedy, Ph.D., is a classroom teacher and the Lupton Distinguished Professor of Mathematics at the Baylor School in Chattanooga, Tennessee. A frequent speaker at professional meetings on the subject of mathematics education reform, Dr. Kennedy has conducted more than 50 workshops and institutes for high school teachers. He is coauthor of textbooks in calculus and pre-calculus, and from 1990 to 1994 he chaired the College Board’s AP Calculus Development Committee. He is a 1992 Tandy Technology Scholar and a 1995 Presidential Award winner. He is part of the authorship team for Precalculus: Graphical, Numerical, Algebraic and Calculus: Graphical, Numerical, Algebraic, AP® Edition.