The document discusses the changing nature of social work education and practice in the 21st century workplace. It argues that learning now occurs through social interaction and collaboration within communities of practice, rather than the traditional model of individual instruction and supervision. Specifically: 1) Workplaces now emphasize continual learning and knowledge construction among workers to adapt to changing conditions. 2) Situated learning theory suggests knowledge is socially constructed through collaboration and co-participation with others in authentic workplace settings. 3) Social work education needs to shift from a focus on individual learners and supervisors to recognize that learning occurs through engagement in communities of practice within workplaces.