This paper discusses the results of a research project which aimed to capture, analyse and communicate the complex interactions between students, teachers and technology that occur in the classroom. Teachers and researchers used an innovative research design developed through the InterActive Education Project (Sutherland et al., 2003). Video case studies were carried out in four classrooms, focusing on the use of interactive whiteboard technology for teaching and learning. The case studies were analysed using StudioCode, an analytic tool which allows researchers to mark and code segments of video data into categories and themes. Teachers developed coding systems drawing on the learning aims and objectives of their particular lessons. The case studies illustrate that the introduction of interactive whiteboards (IWBs) into the classroom involves much more than the physical installation of the board and software. Teachers are the critical agents in mediating the software, the integration of the software into the subject aims of the lesson and appropriate use of the IWB to promote quality interactions and interactivity. (Contains 3 figures.)