Integrating and using technology in the technical communication classroom is an ongoing interest and challenge for the field. Previous work tends to focus on best practices and other types of generalized advice, all of which are invaluable to teachers. But this article encourages teachers to also pay attention to sociotechnical forces and dynamics in local settings. It explains how a cartography of affect can be useful in demonstrating how technologies become imbued with meaning and significance in particular pedagog-ical contexts. The authors illustrate the value of this mapping practice through a case study of iPad integration and use in a technical communication service course and its teacher-training course. They also provide examples of heuristic questions that can guide critical cartography projects in local settings.