Abstract
This paper examines lifelong learning in differentiating it from formal education, and emphasizes multiple theoretical perspectives in doing so. The theoretically based approaches emphasized here include contextualism and the multi-layered nature of the environment, the dialectics of interactions among students and instructors, the zone of proximal development, and person-environment fit. Examining lifelong learning from these perspectives deepens our understanding of such learners and has implications for future research examining lifelong learning, as well as for the design and implementation of interventions designed to foster positive intergenerational relationships.