According to the United Nations Convention for the Rights of Persons with Disabilities [UN 2006. Accessed May 7, 2016. https://www.un.org/development/desa/disabilities/convention-on-the-rights-of-persons-with-disabilities.html], full participation should be premised for everyone with a disability. However, the concept of 'full participation' is not clear. In this article, it is argued that the conceptualisation of participation is essential to create a welcoming context for all children in education. In a context characterised by a multiplicity of connections, children with special educational needs participate but at the same time also experience discrimination and exclusion. The aim of this study is to unravel the meaning of full participation, not as a state of being but as a process of becoming. In focus group dialogues, it is demonstrated how full participation is relationally formed inside and between the many connections that pupils seek in order to belong. It is thus a multi-layered concept, closely connected to accessibility and, due to its emergent and entangled nature, also very elusive. It revolves around a sense of belonging, with an important focus on interconnectivity, diminished conditionality and imagination.