How does misinformation originate and spread? What cognitive factors come into play when students evaluate sources? And what can we do to teach them to de-bias their judgments? Ignite your teaching by learning to model quick-and-dirty “rules of thumb” that students can use or revise when they evaluate sources during short research tasks. And, conversely, learn when to add “points of friction” into your instructional design, so that your students will be willing to think deeply when their research project is “worth it.”