Invention offers many benefits as a unit of study. It teaches valuable process, subject integration, and critical thinking skills. It is especially relevant to American history. Over 60 percent of the annual growth in U.S. gross national product comes from technological advances. Technology is the cardiovascular system of the U.S. economy. Invention is the ground floor of that economy, and as such, offers a great way to teach about the intimate relationship between technology and standard of living. Teaching about invention often produces remarkable results and enthusiasm. This article suggests introducing invention into the classroom by having students learn how to brainstorm, document, and market technological innovations.