Designing for Productive Disciplinary Engagement and Responsive Assessment with Situated Cognition and Expansive FramingThis paper summarizes over two decades of design-based research that insistently draws on situative theories of cognition. This research is consistent with the current focus of AECT and the AECT Research and Theory Division. This focus primarily concerns enduring problems in education and only secondarily concerns the technologies used to help address such problems. The first decade of research consisted of collaborations with leading innovators in multimedia and immersive learning. This resulted in a “multi-level” model of assessment that balanced formative and summative assessment, balanced extrinsic and intrinsic motivators, and boosted performance without “teaching to the test.” The second decade primarily concerned online contexts and included extended research of “open digital badges” and other web-enabled digital credentials. Embedding the design principles from Randi Engle (1965-2012) for productive disciplinary engagement and expansive framing resulted in a comprehensive framework called Participatory Learning and Assessment (PLA). This research qualified widely-held assumptions about “authentic” and “real world” instruction to address enduring problems such as online instructor “burnout,” student social isolation, synchronous vs. asynchronous learning, and secure online assessment. Recent and current efforts extended these ideas to address historical and continuing inequities in education and help define a new consensus on our theories of learning transfer.