The past few decades have seen an explosion of research-based physics curricula and teaching methods that replace traditional didactic instruction with more interactive, student-centered teaching methods. Teachers who use these strategies can transform their students from passive acceptors of knowledge to active investigators who are deeply engaged in their own education. And not only will students learn more, but they may come out with a more positive attitude towards physics. This site gives examples of which modifications to make, as well as of other institutions which have already undergone course transformation.