Paper presented at 2009 JSWEC Conference. Klein (2004) has summarised accurately the realities of professional practice by suggesting that the problems practitioners face are marked by unpredictability, ambiguity, turbulence and uncertainty. The tragic case of Baby P, like that of Victoria Climbie, has underlined these demands yet again. Both these cases evidence the need for social work and medical practitioners to work together collaboratively, communicating clearly and understanding each other’s language, perspectives and assessments. In qualifying training the need to prepare social work and medical students for practice in these difficult environments and to enable them to develop collaborative attributes is essential. Moving beyond policy requirements in relation to inter-professional practice and learning, this paper proposes that complexity theory should play a central role in the theorisation of inter-professional learning and practice. Informed, inter alia, by the notions of attractors, simple-rules, self-organisation and emergence, it is argued that more emphasis should be placed upon creating receptive conditions and contexts which will support and facilitate good collaborative working. The paper also reports case studies of learning and teaching where medical and social work students work together early in their training, and together consider the difficult realities of service user/ patient need, whilst exploring key skills for joint working. The importance of incorporating openness to collaborative practice as students develop and negotiate their professional identify is highlighted, as is the part played by teaching staff in modelling collaboration. Reference Klein JT (2004) 'Interdisciplinarity and Complexity: an evolving relationship'. Emergence: Complexity & Organization 6:1-2 pp2-10