Provide sample activities of mobilizing teacher leadership practices from classroom to school-based professional learning. It is within the teachers’ collaborative effort innovative instructions, engaging simulations, leadership attributes, leadership skills, and role as referral leader to determine teacher leadership competency in the new millennium school change initiatives (Kho, F.C.Y., (2020). Teachers Who Lead. Tanjung Malim, Perak: Penerbit UPSI/UPSI Publisher)