In this TED talk, John Bohannon makes a presentation where he suggests using dancers in lieu of PowerPoint, illustrating his talk with dancers from Black Label Movement. This video is fun, beautiful, and a bit tongue-in-cheek. His point, that abstract concepts are easier to understand when presented through movemment, is made clear visually as well as auditorily. Of course, not every teacher has access to professional dancers to help jazz up the lesson's lecture, but this would make a wonderful activity for students to complete. Have them work on the day's concepts by creating their own dance, illustrating the concepts with their entire bodies.