Curriculum aims often remain unrealised aspirations. This is because the values and principles implicit in them fail to get articulated in forms that can effectively inform and guide the practice of teaching. Ideas such as "learner-centred education", "independent/autonomous learning", "self-directed learning",…

Virtual worlds have been linked with e-learning applications to create virtual learning environments (VLEs) for the past decade. However, while they can support many educational activities that extend both traditional on-campus teaching and distance learning, they are used primarily for learning content generated and managed by instructors. With…

This paper draws on earlier work on ideas that underpin the collection and use of evidence in science in schools. It establishes that different types of practical work share the same procedural underpinnings. It then takes the work of Toulmin on argumentation to suggest that the idea of the "public claim" can be used to forge a link…