This project seeks to revolutionize grading practices in STEM education by addressing the limitations of the traditional Points-Based Grading (PBG) system, commonly used in Precalculus and Calculus courses. PBG, criticized for its inability to reflect students’ true understanding, capture growth, and address potential biases, is being replaced by the innovative Standards-Based Grading (SBG) system. SBG focuses on student mastery of specific learning outcomes with a pass/fail approach and opportunities for reassessment. Following the success of a prototype project implementing SBG in Calculus I at California State University, Monterey Bay, and Hartnell College, this initiative extends to precalculus and various STEM disciplines through a follow-up grant. With the active involvement of 26 faculty members and an impact on approximately 1500 students, the project aims to assess the transformative impact of SBG through comprehensive data collection on student work, grades, and perceptions, offering a progressive alternative to traditional PBG methods.