This excellent revision of the Stanford Encyclopedia of Philosophy's (SEP) article on shared agency is a must-read for anyone working on theories of applications of collaboration in learning. "Shared activity is distinguished from a mere aggregation of individual acts by a structure of appropriately related participatory intentions across different individuals. It is a structure that has a distinctive normative significance for those individuals, with an impact most immediately on each individual’s intention-based practical reasoning." The article discusses different accounts of shared action, mechanisms for structuring interrelated intentions, mutual obligations, and the group-mind hypothesis. See also: collective intentionality. Image: Idle no More, APTN News.