In this article, the authors describe the advantages they have discovered of simulations over real-life tasks on materials development courses they have run together in different parts of the world. They outline the principles, objectives, and procedures of the types of simulations they have used and describe examples of simulations to illustrate their points. In particular, they stress the value of simulations in providing a rich but economical experience that the participants are helped to respond to through a simplification of the reference system. This provides focus and direction but challenges the participants to discover and develop ideas and solutions for themselves. In this way, simulations are able to aid the development of both theoretical understanding and practical skills and to contribute to the development of self-confidence and self-esteem.