Homework doesn't work. The students who should be doing it aren't, and the students who are doing it often don't need it. Check-your-understanding questions (CYUs) are different. Students do them. Everyone does them. And many students actually enjoy doing them. Why is that? In this session, I explore the key differences between homework and CYUs and what it is about CYUs that creates such a dramatically different experience for students. Participants will leave with a deeper understanding of what makes CYUs so effective and how they can be used to increase student participation, engagement, and learning.