Describes two stages of potential development that could make multimedia the core of an information infrastructure for educational reform: (1) incorporating hypermedia to enable knowledge construction by learners; and (2) using visualization and virtual communities to create artificial worlds. (16 references) (MES)

Presents a computer-based information system developed to support information understanding based on knowledge structures in hypermedia contexts. Examines the development and implementation of an understanding support system (USS), providing computational support for representation and access of knowledge structures. Discusses adding link-based…

Explores the relevance of hierarchies to information processing. Suggests that participants in all conditions create hierarchical representations as they work, and those in nonlinear conditions use this structure to guide their exploration of the material. An important function of hierarchies may be to define relationships between concepts.…

Examines the psychological basis of hypermedia as a medium for learning, surveys the characteristics of current hypermedia systems, and suggests ways to make hypermedia systems more valuable as instructional environments. Highlights include parallels between human memory and hypermedia architectures; and hypermedia as knowledge presentation,…

Hypertext is well-suited for educational applications where open learning and knowledge exploration is desired. In such applications, principles of good hypertext interface design should be employed to avoid navigational problems so as to maximize learning. Interface design, however, may also directly enhance acquisition of a particular knowledge…

Examines the qualities of hypermedia information systems that enable them to facilitate learning and knowledge construction. Discusses the background of current learning theories, and describes a possible hypermedia system based on constructivist learning principles that could be developed through the use of intelligent autonomous agents.…

Proposes a theory for organizing information and activities in educational hypermedia systems and evaluates theory effectiveness based on implementation of a multimedia learning environment. Results suggest that self-paced interactive learning environments, multimedia information access, and constructive activities organized into cognitive media…