CS unplugged—How is it used, and does it work?

Abstract

Computer Science Unplugged has been used for many years as a way to communicate concepts from computer science to audiences in a variety of settings. Despite its widespread use, there is relatively little systematic evaluation of its effectiveness. In this paper we review what (Computer Science) Unplugged means, and the many contexts in which it has been used, as it started as an outreach tool, and then found its way into other contexts such as teacher training, and more recently into the classroom to support a formal curriculum. Formal evaluations of using Computer Science Unplugged as an approach to teaching the subject of computer science are reviewed, and we also reflect on the complex considerations that lie behind the development of activities and puzzles that are simple enough for school students to use.