As part of an ongoing research program, the authors investigated the use of single-voiced narration and multi-voiced characterizations/monologues in a formative evaluation study of an instructional lesson on information processing. That lesson employed a design based on the use of content-related metaphors and a metaphorical graphical user…

Many writers suggest the use of metaphors in creating hypermedia and multimedia products. However, it is unclear how to choose an appropriate metaphor and how to avoid an inappropriate metaphor that will cause confusion and conceptual difficulties for users. A metaphor compares one thing to another without directly stating the comparison,…

Discusses design principles that apply to the creation of effective instructional hypermedia or multimedia products that meet the needs of teachers and students. Topics addressed include the adoption of technological innovations; curricular issues; the development of thinking skills; user needs; videodisks; interactive systems; context; and print…