Dr. Wright's Kitchen Table Math: Book 3
Chris Wright is a mathematician, math teacher, and father of two children. He has a Ph.D. in mathematics from Stanford University, and was an assistant professor at Duke University. After a fifteen-year foray into the software world, he has returned to his first love, and for the past fifteen years he has been homeschooling, teaching, and tutoring children of all ages.  He currently teaches math at Pacific Ridge School in Carlsbad, California.