In this article, the author provides an overview of teaching and learning activities that combine both historical and civics instruction with the study of technology, in line with NCSS thematic strand "Science, Technology, and Society." Specifically, these integrative teaching activities focus on Lowell Mill and Ralph Waldo Emerson, within the context of the profound political and technological changes of the 19th century. The activities are based on the premise of cultural historian John Kasson that "The experiences Americans have historically brought to their technology are profoundly rooted in their understanding of the entire republican experiment." The author provides historic background to contextualize republican ideology and its origins in the American movement for independence. She outlines the ideals of a republic as conceived by Americans at the time and traces the conflict between agrarian and manufacturing interests in the young republic. Next, she offers two examples, Lowell Mill and the works of Emerson, as a means to explore the relationship between republicanism and American responses to technology. Lowell Mill, considered by contemporaries to be a "republican factory," offered an alternative to the poor conditions observed in foreign factories. Ralph Waldo Emerson described in his writings his internal conflict between elation over new technology and fear that it would impair civic virtue and personal freedom. For both Lowell Mill and Emerson, the author suggests relevant, digitized primary sources and discussion questions for students. (Contains 33 notes.)