In 2005 the American Society for Cybernetics awarded Ernst von Glasersfeld its highest award, the Wiener Medal. The citation reads: Von Glasersfeld’s seminal work, developing a constructivist approach to problems raised by early cyberneticians, has enriched the field and moved the conceptual base of cybernetics into a more consistent vision – expanding the nature of how we understand cybernetics, how we enter into cybernetic processes of constructing our worlds, and how we approach the consequences of this understanding.

The American Society for Cybernetics

Radical constructivism has had a profound impact on the field of science education, especially in the past three decades. Initially introduced by Ernst von Glasersfeld in mathematics education the ideas were picked up and widely applied in many scholarly ways … Within science education there are just a few scholars that have shaped the field profoundly and in ways that warrant their work being cited for years after its initial publication. John Dewey, Jean Piaget, and Lev Vygotsky are three field shapers. Perhaps Ernst von Glasersfeld is another.

Kenneth Tobin Ι The City University of New York