This research paper focuses on the successful implementation of play-based learning (PBL) environments within the New Zealand mainstream primary school sector. In particular, the focus is on the role of Resource Teachers: Learning and Behaviour (RTLB) in supporting the implementation of PBL within the junior classes of Year 0 to Year 2. A review of the literature on PBL explored the pedagogy of play and the importance of the teacher within this learning environment. Through an anonymous online questionnaire, teachers of students in Years 0 to 2 who are currently implementing PBL, shared their experiences of the barriers and enablers towards the successful implementation of PBL. The research results highlighted that there is a need for sustained professional development on the implementation of PBL and the establishment of a mentoring partnership to further develop the competence and confidence of teachers working within a PBL environment.