This paper draws on the narratives of three teaching staff as they collaborate to transform student teachers' thinking and praxis about sustainability through a bicultural perspective that acknowledges indigenous and Western ideologies. It will discuss some of the experiences that the student teachers found to be transformational such as: whakapapa (our connectedness to all things, both living and non-living) and a mini action research project on the "rubbish" generated on their class days. The question the co-researchers pose: How is the [bicultural] conceptual framework visible in our teaching and learning about sustainability? Our findings suggest that student teachers become articulate and passionate about sustainability through engagement in activities that challenge the "taken-for- granted" everyday practices. As confidence and competence increases, student teachers can realise their potential to make significant curriculum changes as they work alongside children and their families to care for planet earth.