The design of problems is crucial for the effectiveness of problem-based learning (PBL). Research has shown that PBL problems have not always been effective. Ineffective PBL problems could affect whether students acquire sufficient domain knowledge, activate appropriate prior knowledge, and properly direct their own learning. This paper builds on…

Describes the steps in developing an instructional audiovisual presentation: (1) the conceptualization stage (identify goals and instructional objectives); (2) the planning stage (define skills and instructional sequence); and (3) the development stage (take slides, write story line, evaluate field test data, and revise). (LC)

Discussion of the educational effectiveness of textbooks focuses on a model of a virtual textbook that relies on hypermedia. Highlights include changing roles of teachers, students, and content; systemwide features of the virtual textbook, including interface and object-oriented design; classroom environment; sequencing; and a prototype. (Contains…

Examines issues related to the way a teacher acting as instructional designer deals with the content or knowledge base of the instructional materials being developed, including the nature of knowledge, learners' schemata, organization of content, facilitating abstract thinking, and standards of accuracy for knowledge representation. (24…