The paper presents a case study illustrating a collaborative problem solving process in Virtual Communities of Practice. The process relies on the existence of an underlying shared knowledge base – a repository of resources, and is carried out collaboratively by…

Categories for evaluation of educative software by different authors are analyzed. For STI theoretical basis are: learn by doing, construction of knowledge, mental conflict, zone of proximal development, learning by discovery, conceptual change, and learning for the understanding and the…