Give students the tools and the experience they need to critically analyze text and respond to test questions that are correlated to Common Core Standards. Begin with Test A which provides call-out tips on how to approach each question or problem. Progress to Test B which provides fewer tips. Test C provides tips. Since the goal is to learn to think critically (t just score well), the answer key gives t just the right answers, but also explanations for why one answer is correct and the others are incorrect.