Theory of didactical situations and instrumental genesis in a cabri elem book
Résumé
The contributions of two theoretical frameworks (Theory of Didactic Situations and Instrumental Genesis) to the design of a sequence of tasks in the Cabri Elem envi-ronment, where task and technology design are closely linked, are shown. Consider-ing the potential for instrumental genesis as a theory of technology design reveals a fundamental difficulty in dealing with representations. It is hence suggested that the role of the artefact be broadened to include environments, tools, and entities.