This paper presents a slide presentation software that incorporates a concept map, which explicitly shows how the various slides (and other multimedia components) presented are related to each other. Furthermore, presentations are conceived as hypermedia systems, where the presenter can navigate among slides (and the concept map) instead of the typical linear ordering of slides. This approach will alleviate the load on the audience to memorize, recognize and process perceived information. This tool can be extremely useful to enhance understanding of presented material, which is particularly valuable in the classroom environment. (Author)