Abstract
This chapter examines the use of mixed-reality technologies for teaching and learning, particularly for more active and collaborative learning activities. The basis for this work was the creation of the MiRTLE platform-the Mixed Reality Teaching and Learning Environment. We report on some of the lessons learnt from using this platform on a range of different courses and describe how different active/collaborative approaches were used. We also provide evidence of the effect of these different approaches on the overall student attainment and discuss the implications on the use of this technology. We then consider some of the technological research being done to develop these mixed reality learning spaces and the affordances offered by this approach. Finally we reflect on the tensions between the pedagogy and technology and consider the implications for the wider systems that support teaching and learning and co-creative collaboration in mixed-reality environments.