A grading system is a method used by educational institutions to evaluate and communicate a student's academic performance. It typically involves assigning letters, numbers, or descriptors to represent levels of achievement, such as A, B, C, D, and F in the United States. Each grade corresponds to a specific range of scores, helping to standardize assessments across different subjects and courses. Grading systems can vary by country and institution, with some using a numerical scale from 0 to 100, while others may employ a pass/fail system. Additionally, many schools calculate a Grade Point Average (GPA) to provide an overall measure of a student's performance, which can be important for college admissions and scholarships.