Outlines the instructional design principles underlying the Direct Instruction Model and applies these principles to a variety of content areas. Urges the integration of curriculum design principles with effective teaching practices. Also offers criteria for evaluating and selecting curriculum materials based on direct instruction principles.…

This article uses a cognitive problem-solving model to explore the application of hypermedia authoring software to mathematics in general and to mathematical problem solving in particular. Hypermedia is presented as a method of exploring alternative solution processes to remediate or prevent learning problems. (JDD)