The previous interfaces, designed as a resource for a lecture, would be of little use to a student who had not attended the lecture. It is possible to provide additional information in an eSim to support and guide a student. In this example, the interface duplicates the type of material which might be supplied in any elementary electrical engineering text book. However, in this instance, instead of being passive recipients of the information, the learner can, within the bounds permitted by the designer, interact with the diagrams and explore new concepts.