Try a simple method to curve your student’s test scores by taking the top score in the class and adding as many points as necessary to reach 100. Then, add the same number of points to every other student’s scores. For instance, if the top score were 93, you would add 7 points to every student’s score.

Drop a frequently missed question in order to curve the grades of the entire class a little higher. Grading curve adjustments are handy when the majority of students do poorly on a specific question. If even the best students missed the same question on the test, then you may feel it isn’t fair to hold it against their grade. In that case, just drop the question and grade the papers without it.

Assess letter grades percentage-wise on an assignment where you feel the student’s scores do not reflect their actual knowledge. No teacher wants to be unfair to his or her students and if you discover you neglected to give a portion of the test material beforehand, this technique works well. In this case, figure out the percentage of the test in question and raise the letter grade by a corresponding amount. For instance, if you determine that 15 percent of the test is in question, add fifteen percentage points to every student’s score to raise their letter grade.

Transfer your student’s scores to a bar chart and you should see a bell-shaped curve where the majority of the students scored in the average range and fewer students scored very poorly or very well. Known as the Bell Curve, you may choose the average grade you believe represents the most accurate average score and place the remaining grades on the curve before and after to form the bell.

Offer extra credit points to a single student who scores high when the rest of the class scores low. When forming your grading curve, you can reward a student who scores 100 percent, in spite of the normal class averages by adding the additional points to his score. In that way, it is possible for a single student to receive a score over 100 percent.