In this invited autobiography, the author describes the impact that educational gaming and simulation has had on his professional career. He begins by reviewing his early life and education in Aberdeen and his subsequent work as a research scientist, schoolteacher, and physics lecturer. He then shows how he changed disciplines from physics to…

This booklet begins by examining the role played by evaluation in course and curriculum development, and then shows how the basic "error elimination" approach advocated by the philosopher Karl Popper can be used as a basis for the on-going evaluation of instructional systems. Next, two contrasting paradigms of evaluation are described,…