Comparisons are drawn between the ideas of mastery learning and instructional design. Agreement is noted concerning the main factors contributing to the quality of instruction. Differences exist in the taxonomic categories of learned performance of the two systems and in the proposal of instructional design that each category requires a different…

Effects on learning of most principal independent variables can be generalized within, but not between, five different categories: intellectual skills, verbal information, cognitive strategies, motor skills, and attitudes. Psychological research has been and continues to be well-served by this categorization. (GC)

Proposes that Gagne's nine events of instruction be incorporated into the systematic design of computer assisted instruction (CAI) for microcomputers and describes the nine events in relation to five different kinds of learning outcomes which occur frequently in CAI. Seven references are cited. (MER)

In order to ensure the effectiveness of instruction on a new topic, teachers must help students recall prior "prerequisite" learning. The type of learning to be recalled varies with the type of learning outcome expected. (RJG)