IntroductionWater is an integrating natural resource that connects ecosystems, economies, and societies. In large watersheds like the Upper Mississippi River Basin (UMRB, see Box 19.1 ), the mismatch between environmental systems and political boundaries means that fi nding ways to work together is essential to make progress toward identifying shared water management goals and taking action toward them. In the case of the UMRB, for example, we might ask: How do we do uncover and discuss divergent worldviews about how to manage water and what to manage it for, and how do we manage the watershed to improve sustainability for all important uses? Answering these questions requires tools from the social sciences that can help identify and compare stakeholders' different perspectives and priorities for multiple desirable outcomes for managing complex resources. Understanding how people weigh competing outcomes provides information on potential trade-offs while uncovering their rationales can reveal common ground that might otherwise be overlooked. The process of ranking disparate ideas and discussing choices presents an opportunity to initiate critical but diffi cult discussions about the values that infl uence how stakeholders view "the facts" as they advocate for their choices for watershed planning and water management.In the activity described below, students sort, rank, and explain their priorities for managing a watershed using a social science method called Q-sort. This proElectronic supplementary materials: The online version of this chapter