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 “Weighted mean of grades” aggregation type enables you to assign weights for categories and items. A weighted average is one where all assignments, tests, projects, etc. are weighted differently based on the activity.

Grading Criteria:

In this example, we have two tests worth 20% of the grade, one test is worth 10% of the grade, weekly assignments are worth 10% of the grade, exam reviews are worth 10% of the grade, in-class exercises are worth 5% of the grade, and the final exam is worth 25% of the grade. The total of all assigned weights should equal 100%.

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. Create categories for the grade items that contain more than 2 items that have the same weight. In our example, categories were created for the 16 Weekly Assignments, the 4 Exam Reviews and the 5 In-class Exercises.
   • Scroll to the bottom of the screen and click Add category.The New category screen is displayed.
   • In the “Grade category” area, add the required information including the category name and the aggregation type. In the example, since we want to average the quiz totals, we have used the Mean of grades aggregation type.
   • Scroll to the bottom of the screen and click Save changes.
4. For the course folder, in the course “Aggregation” drop-down list, select Weighted mean of grades. A “Weight” text box will be displayed for each category or grade item.
5. Enter the weight that each grade item or category is worth.
6. In the “Max grade” text box for the Course total, enter the maximum score student's can receive.
7. Scroll to the bottom of the screen and click Save changes.
8. 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.