- Concept maps are useful because they allow teachers to visualise students' knowledge structures. However they have proven difficult to use simply because there haven't been good assessment techniques that help generate a student's concept map. - KST was first used in Mathematics but has since been shown to accurately represent student knowledge in science as well. - KST is particularly useful to compare student and expert conceptualisation and allows you to systematically analyse it. --- Cathcart, Laura, et al. "Using knowledge space theory to analyze concept maps." (2010). - [Link](https://repository.isls.org/bitstream/1/2778/1/952-959.pdf)