WebTOP is a three-dimensional, Web-based, interactive computer graphics system that helps instructors teach and students learn about waves and optics. Current subject areas include waves, geometrical optics, reflection and refraction, polarization, interference, diffraction, lasers, and scattering. Some of the topics covered are suited for…

This paper argues that it is not the technology itself, but instead a learner-centered approach to the use of computers, that will provide the greatest opportunities for students. Three examples from New Zealand primary classrooms are described that illustrate how a learner-centered environment may be structured. (Contains 27 references.) (LRW)

Interactivity in the classroom is reported to promote a more active learning environment, facilitate the building of learning communities, provide greater feedback for lecturers, and help student motivation. Various definitions of interactivity exist in the literature, alternately focusing on the participants, structure and technology. The "PLS…

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…

Discussion of interactive video for educational purposes focuses on the development of a video-supported active learning (VISUAL) resource on voice disorders that used digitized video and an Apple Macintosh computer. User evaluations are reported, and potential applications for VISUAL resources are suggested. (Contains five references.) (LRW)

Describes the use of a microcomputer-based authoring system to facilitate student-centered discovery oriented learning in an undergraduate social science course. Use of the authoring system to implement student-generated experiments, to become familiar with statistics and experimental methods, and to promote empirical thinking is discussed. (14…

Objectives of this study were to create a prototype of an interactive hypermedia textbook and to explore the relationships between learners' performance and use of available learning tools (i.e., textbook glossary and navigation map). The effects of prior knowledge on textbook use and performance were also investigated. (11 references) (EA)

Presents results of a 1991 national survey conducted in The Netherlands that investigated the use of computer-assisted learning (CAL) in higher education. Topics addressed include academic disciplines using CAL; types of CAL, including drills, tutorials, and simulations; level of learner control; authoring languages and programing languages; and…

Discusses conceptual difficulties in the field of geometrical optics and describes RAY, a microcomputer-based graphic interface that was designed to serve as a teaching aid and as a learning environment. The ability to combine theory and formal representations with real demonstrations and experiments is discussed. (Contains seven references.) (LRW)