This CLRN project at the University of Colorado at Boulder examines how the social organization of activity settings, forms of mediation, and tool use can be employed to leverage both horizontal (everyday) and vertical (scientific or school-based) kinds of expertise (Gutiérrez & Vossoughi, 2010) in children and young adults. Too often, especially in school or formal learning environments, everyday expertise and knowledge are in tension with school-based knowledge.