Transition MathematicsTeacher's Edition Author:Zalman Usiskin, James Flanders, Cathy Hynes, Lydia Polonsky, Susan Porter, Steven Viktora This book is designed for the course immediately preceding first-year algebra. Its content and questions have been carefully sequenced to provide a smooth path from arithmetic to algebra, and from the visual world and arithmetic to geometry. Developed by the University of Chicago School Mathematics Project.