Don't be afraid to ask questions in class. Really! "But I always feel so dumb!! "The only dumb thing is not to ask! And if you do ask you'll be a hero to the rest of us confused cowards. See also poster L07 for a spanish language version. It's a classic problem, the failure of students to ask questions. This poster addresses the problem and encourages a heroic response. Poster size: 19" by 25".