This document discusses the concept of karaoke presentations where students create short PowerPoint slides with graphics, written narratives, and audio recordings to demonstrate their understanding of concepts or processes from class. Examples provided include explaining how an Archimedes screw works or hypothesizing why certain airports closed based on course readings. Sources mentioned for graphics include textbooks, publishers, databases, Google images, and students can create their own graphics using provided data. Completed presentations can be posted online for other students.