Grade Book: Calculate an Average

You can choose the aggregation method that best suits your needs for calculating a final grade, or Course total in Moodle.

“Mean of grades” will calculate an average of all grade items and categories.

“Weighted mean of grades” enables you to assign weights to grade items and categories.

“Simple weighted mean of grades” enables you to use a point system to calculate grades.

The “Mean of grades” aggregation type enables you to sum all the grades and the divide the total by the number of grade items. This is good when you base everything on 100 percent.

Grading Criteria:


Homework 1       100
Homework 2       100
Test 1                100
Test 2                100
Presentation       100
Paper                100
Final Exam         100

In this example, the “Mean of grades” aggregation type will sum the grades for each item and then divide the total by 7, because there are 7 items.

To create this formula in the Moodle Grader report:

  1. From the course main page, in the “Administration” block, click Grades.
  2. Select the Categories and items tab.
  3. For the Course folder, in the “Aggregation” type drop-down list, select Mean of grades.
  4. If you are not administrating any of the graded items via Moodle, create the columns. For each column you want to add:
    1. Scroll to the bottom of the screen and click Add grade item. The New grade item screen is displayed.
    2. In the “Grade item” area, add the required information.
    3. Scroll to the bottom of the screen and click Save changes.
      NOTE: You can add and delete columns to the grade book and the Course total will update.
  5. Scroll to the bottom of the screen and click Save changes.
  6. Select the View tab. The course total will display the final grade.
    NOTE: The Course total will not reflect the final grade until all grades are input.