Abstract
Constructivism is very influential in education. However, its underlying ideas and assumptions have not yet been critically analysed sufficiently. In this paper, I argue that John Dewey’s analyses of the transaction of organism and environment can be read as an account of the construction processes that lie beneath all human activity. Dewey’s work anticipates, if it does not explicitly articulate, much of what is important and interesting about constructivist epistemology and constructivist pedagogy. The paper is devoted to a reconstruction of the formulation of this transactional constructivism, and to an analysis of its consequences for a constructivist understanding of communication and education.