In this Generations Skeptics bellringer, students cut out and compare a single curve, confidently judging whether it is longer or shorter than others as they move around the room. When they discover all curves are the same length, they confront how context distorts perception. The lesson uses this shared error to spark reflection on flawed thinking, misinformation, and the importance of intellectual humility across disciplines. For all free materials related to this lesson, click here: Curve Yo