Students who achieve a score of 90% or higher on their midterm exams typically qualify for additional points. This criterion is based on the assumption that such scores indicate a strong understanding of the material and a high level of academic performance. According to data from the National Center for Education Statistics (NCES), students with scores above 90% tend to perform better on final exams and have higher graduation rates compared to those with lower scores. Therefore, rewarding these students with additional points can serve as an incentive for maintaining high academic standards.