Incremental student modelling and reflection by verified concept-mapping

Abstract

Concept mapping is a technique for externalising a conceptualisation in terms of a visual two dimensional layout which shows the propositions believed by the learner as well as other similarity and hierarchy relationships. In this paper, we describe VCM, the verified concept mapper. It is a novel form of concept mapping designed to elicit a learner’s understanding, as a basis for building a learner model. We describe the display of the learner model as an aid to reflection. We report an early evaluation of the system and the ways that it has informed our understanding of the need for incremental modelling and reflection steps.