(Sure, it's kind of nice to have a simple rule for when to guess on a multiple choice question, but isn't it better to be able actually to solve the problems?) Princeton, Up Your Score and REA just seem to be battling each other to be cute and clever with their delivery, but that's not what kids need. What students need is lots of practice coupled with smart feedback that recognizes their common mistakes. 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. .