For those involved in supporting and educating children with traumatic brain injury, the interface between health care and education is complex. This paper reports the findings of a study exploring how teachers of children with traumatic brain injury experience collaboration with health-care professionals. A phenomenological approach was used to understand teachers’ experience of collaboration. Semi-structured interviews were undertaken with five teachers who taught children with traumatic brain injury in a regional area of Australia. The findings revealed that the experience of collaboration for teachers is characterised by moving through three notional spaces (starting out in the interactive space, moving into a collaborative space and embracing the collaborative space). As they move through these spaces, teachers widen their self-sufficient practice horizon to develop reciprocity with health-care professionals. The findings from this study highlight a need for health-care professionals to be sensitive to, and aware of, teachers’ familiarity with interdisciplinary collaboration, issues related to knowledge differentials and time constraints.