Discusses the relationships between knowledge structure, teachers, and learners. Implications for designing an intelligent tutoring system (ITS) are considered; and it is argued that an ITS must model the world, the learner, and teacher-learner interaction to be successful. Experiments conducted to assess the practical usefulness of several…

Reviews efforts to develop and use computer support for situated, collaborative learning. Presents lessons learned in pilot experiments designed to examine how to integrate two types of group collaboration tools: constructivist and/or minimal instructionist. Students appeared to favor the integration of instructionism into constructivist…