This paper presents a framework for understanding conditions of discovery learning in computer-based microworlds. It begins with a short discussion of problems related to a traditional type of microworld--i.e., learning tools for mathematics--using the Dienes Multibase Arithmetic blocks as an example. In this discussion, hypotheses are developed…

Describes a study conducted at the University of Groningen (Netherlands) that investigated the effectiveness of a computer-based training program for use with an automated system for retrieving legal information. Hypotheses tested are explained, computer-based versus traditional instructional methods are compared, and implications for further…