Volume 1, Number 1
15 November 2005

Cover Art: Knidos © Werner Horvath, New Austrian Constructivism, with kind permission of the artist

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Editorial. The Constructivist Challenge

Alexander Riegler

Thirty Years Constructivism

Ernst von Glasersfeld

Ceci n’est pas Heinz von Foerster

Diederik Aerts

Enactive Cognitive Science. Part 1: History and Research Themes

Kevin McGee

People, Tools, and Agency: Who Is the Kybernetes?

Herbert F. J. Müller

Against Realist Instruction

Dewey Dykstra Jr.