This study employed a qualitative research design to investigate instructional designers' views and uses of conceptual tools in design work (e.g., learning theories and design theories). While past research has examined how instructional designers spend their time, how they generally make decisions, and expert-novice differences, little attention…

Defines activity theory as a socio-cultural and socio-historical lens through which the interaction of human activity and consciousness within its relevant environmental context can be analyzed. Describes how activity theory can be used as a framework for analyzing activities and settings for the purpose of designing constructivist learning…

Describes how a practical design question led to a reconsideration of the design process for problem-based instruction. Argues that this restructured process, called the "single-parse" design method, is of general value to designers. Discusses the product that emerged and application to the World Wide Web. (AEF)