The Te Ariki project is a school leadership and development initiative involving 56 schools and over 650 teachers and principals. It is supported by a charitable trust and facilitated by current practicing principals. The project focuses on collaborative critique of evidence-based practice, using online portfolios and meetings for principals and teachers to present and discuss their work. This helps connect leadership goals to teacher behaviors and student outcomes. Key benefits include building teacher capacity, aligning appraisal, and developing a learning community through meaningful professional dialogue.