 The same article also said that the school district was planning to adopt a new grading scale in at least two schools by the end of the month.The article stated that under the original grading scale, the minimum scores required to earn an A, B, C, D, or F, were, respectively, 90%, 80%, 70%, 60%, and 0%.Under the new 5-point grading scale, the minimum scores required to earn an A, B, C, D, or F would be changed, respectively, to 4.0, 3.0, 2.0, 1.0, and 0.