Discussion of the use of instructional videodiscs focuses on authoring tools that can change the original purpose of a disc. Ways in which videodiscs can be repurposed are described, including classroom presentations, testing, and interactive lesson design. Examples of videodisc software for each purpose are given. (LRW)

Describes the repurposing of a Public Broadcasting Service television series, "Newton's Apple," into interactive videodisks for middle school science classrooms. Topics discussed include the goals of the project; components of the videodisks, including video, still photos, print materials, teacher's guide, and software; and feedback and…