Explains why metaphors are important design elements in multimedia learning environments. Describes a model developed for levels of metaphor mapping which is oriented toward a cognitive engineering approach for describing aspects of user interfaces. Shows the extent that the didactic dimensions of width and depth of metaphors be taken into account…

"Bohr's Atomic Model" is a small interactive multimedia program that introduces the viewer to a simplified model of the atom. This interactive simulation lets students build an atom using an atomic construction set. The underlying design methodology for "Bohr's Atomic Model" is model-centered instruction, which means the central model of the…

Hypermedia has long been considered to have great potential to support educational tasks and applications. Many success stories of hypermedia support in education have been reported. Much of this work has been done in the context of traditional closed hypermedia systems rather than more contemporary open hypermedia systems. Developing hypermedia…