Abstract
Computerized environments and digital resources for learning grow in all areas of education and training. In a perspective of efficiency and (re) use, what specific problems face their design and implementation? " Computerized environments and digital resources for learning " coming from a symposium of REF (International Network of Educational Research and Training), presents the work of researchers from different fields (didactics, computer science, education) collaborating to articulate their views on these issues. Their contributions evidence the need for frequent interaction between designers and users in networks or communities of practice, in line with the instrumental approach perspective of co-evolution of practices instrumented and computerized devices. In this context, the analysis of instrumented activity is crucial for a renewal of the instructional design.