In this article, the author describes the experiences middle school students on a field trip to the new Constitution in Action Learning Lab in the Boeing Learning Center at the National Archives can expect. There, middle school students take on the roles of archivists and researchers collecting and analyzing primary sources from the holdings of the National Archives. Through this experience they gain a greater understanding of the importance of the Constitution to the operation of their government and to their daily lives. The Constitution in Action Lab is the latest addition to the National Archives Experience in the agency's flagship building on the National Mall in Washington, D.C., and will open for regular sessions in September of 2007.