The flashcards-although there aren't enough of them-are very cool in pointing out the common errors that students make on SAT I math problems. (I made a bunch of them myself, sad to say.) The McGraw-Hill guide uses a method that really focuses on the reasoning skills that are the basis of the SAT I, AND ACTUALLY TEACHES YOU THOSE SKILLS!! Unless you have looked at all of these books as I have, you don't know how refeshing that is! The "College Hill Lesson" format is incredibly clear and easy to follow, and helps students to actually become better readers, writers.