We will discuss our experiences and student outcomes when we "un-tracked" science classes and moved to a Standards-Based Grading System in a Metro Detroit suburban high school. We saw student interest and engagement increase as we adopted the NGSS and enacted storylines and NGSS-PBL in our science classes, but we still noticed some patterns that interfered with student learning tied to inequitable access to learning and traditional grading policies. Join us as we talk about how we made these shifts and how this looked in our classrooms. In particular how we used existing work done by the Next Generation Science Storylines and Inquiry Hub teams to identify opportunities for 3D assessment throughout the unit, and to create three dimensional single point rubrics. We will celebrate successes and identify potential pitfalls to address prior to making this shift.