Predictive evaluation of educational software is problematic because such instructional materials should be evaluated only setting by setting. A situated approach suggests that appropriate evaluation can be performed by considering interactions between the three principal actors in the development and use of the software: teacher, designer, and…

Describes an empirical study of students in a Swiss secondary school that was conducted to investigate whether courseware and student characteristics have an impact on learning achievement. Factors to be considered in the design and evaluation of courseware are discussed, students' computer attitudes are considered, and recommendations for further…

Describes software that was designed in the United Kingdom to promote conceptual change in secondary school students studying mechanics. Direct Manipulation of Mechanical Microworlds, an interactive computer simulation, and VARILAB, a computer-based language for modelling systems, are explained; and two studies that will evaluate the effectiveness…