This step-by-step guide will give you the knowledge and tools you need to succeed on this challenging exam. You'll get essential skill-building techniques and strategies created and classroom-tested by high school math teachers and curriculum developers. You'll also get full-length practice tests, hundreds of sample questions, and all the facts about the current exam -- everything you need to do your best on test day! is Chair of the Mathematics Department at Hinsdale Central High School in Hinsdale, IL. is a widely published test-prep author and educator.