Abstract
Effective knowledge sharing is crucial to the long-term capacity-building of learners, in order to ensure the sustainability of individuals, teams and communities. This chapter explores three sites of knowledge sharing practices: circuses in the Netherlands; an Australian senior secondary art classroom; and an Australian university education research team. Despite this diversity of contexts, each site exhibited both similarities and differences in knowledge sharing practices, and generated successful capacity-building amongst the participants. Each group's selection of knowledge sharing practices was based on the concept of 'fitness of purpose', as a knowledge sharing practice that is unfit for one context may be the best fit in another. This leads to a discussion of the concept of 'knowledge reach' across space, time and context.