STEM commentators have noted the obvious - that the Next Generation Science Standards (NGSS) promise to improve STEM education only if implemented fully and with fidelity. Clearly, TEACHERS are essential if the potential of the NGSS are to be realized. As new curricula and assessment systems evolve, it will be TEACHERS who translate resources to create powerful student learning experiences. This session examines experience- and research-based ideas for teacher teams to take charge of NGSS implementation as professional inquiry. The dynamic is expected to be highly interactive.