Abstract
The research presents an environment for distance education that was developed following ergonomic principles, observation and conceptual analysis of existing environments. The system is based on a conceptual model, that aims at giving the learner both a better control on his learning, and more support in the pedagogical and collaborative dimensions. The ExploraGraph© was build following this model, it offers hierarchical graphs to browse in concepts and activities of the courses, navigation based on intentions, and the possibility for the teacher to implement contextual support interventions to guide the learner. The Agora Forum to support asynchronous collaboration is also presented.
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