The answer is…carefully! When using a four-point rubric, such as the one below, a score of three is typically a score that shows students are achieving at an acceptable level. After all, it is the second highest point value on the rubric. Teachers who need to use letter grades are in a bind. Often the easiest way is to take the score earned on the rubric and turn it into a percentage. Mathematically this is accomplished by dividing the points earned by the number of points possible. This method alone will not give an accurate picture of student achievement. When earning three points on a four-point rubric, a student has performed well. Three out of four points mathematically, though, is only a score of 75 percent. In many grading systems, the student is now left with an undeserved D.