The intention behind this workshop is to summarise some of the research about the use of concept maps, concept circles, Gowin's Vee and similar metacognitive devices that enable outsiders to find out the individual's own understanding of particular concepts and the way in which these concepts are interlinked. There is research evidence to suggest that time spent on teaching students to use concept maps is well spent, as it does clarify concepts for some students and will enhance their academic performance. The author is unaware of research evidence linking the other metacognitive devices mentioned with improved performance, but this seems a reasonably plausible expectation.