Robert SteinerRobert Steiner serves as the project director of seminars on science at the American Museum of Natural History, and an adjunct assistant professor in the Department of Mathematics, Science and Technology at the Teachers College of Columbia Uniersity. Phillip A. Schmidt is currently the program coordinator for secondary education at The Teachers College of Western Governors University. He is also the coauthor of Schaum's Outline of College Mathematics, Schaum's Outline of Elementary Algebra, and author of Schaum's Outline of Geometry. Read More Read Less