“97 percent of climate scientists agree that human behavior is warming the earth. That’s not question or a controversy; it’s a fact. And surely we need to teach students the difference. Indeed, they can’t participate constructively in the real controversies of our time — about climate change, and everything else — unless they learn to distinguish fact from opinion, and knowledge from belief.” So far we haven’t done a very good job at teaching our students these skills. Given the significant challenges we face in our modern world, and the overwhelming amount of information found on the Internet (much of which is garbage), it is essential that we teach our students the skills necessary to evaluate truth claims.