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The Simple weighted mean of grades aggregation method is best for people who use a combination of points and percentages. This aggregation type does not allow you to set a weight for items or the categories; it simply uses the inherent weighting you've established by setting different maximum point values. For example, a 75-point item is worth more than a 25-point item. If you want all the student scores added together and divided by the points possible to obtain a percentage, use this aggregation. This aggregation also easily allows teachers to flag items as extra credit, if that option is needed.


Simple Weighted Mean sums the scores the student has earned and divides by points possible to arrive at a percentage.
6/10 + 8/10 + 88/100= 102/120 (85%)

Step-by-step guide

To set course Aggregation type to Simple weighted mean of grades:

  1. In the Course Menu along the top of your course, select the Grades link.

  2. Using the dropdown menu at the top leftFrom the main course page, select Gradebook setup from the gear icon (top right).
    Gradebook setupImage Removed
    Use grader report dropdown menu at top left, select Gradebook setupImage Added

  3. Within Gradebook setsetup, click the Edit > Settings link next to the course category.
    Edit to SettingsImage Removed
    Use the top Edit menu and select Edit settingsImage Added

  4. Toggle or confirm that Aggregation is set to Simple weighted mean of grades.
    Image Removed
    In the aggregation pulldown menu select simple weighted mean of gradesImage Added

  5. Click Save changes at the bottom of the screen.


Empty Grades simply indicates that a grade has not been entered in the gradebook. It may be empty because a student has not made a submission or that the teacher has not yet graded the item. Empty grades display as dashes in the Grader Report; they are different than scores of zero. Zeros are calculated, but dashes (empty grades) count towards the overall grade depending on what the teacher in the site has selected.

By clicking Exclude Empty Grades, the teacher is displaying a total that only reflects the graded items in the course, and the overall grade does not include ungraded items.

Exclude Empty Grades optionImage Added

If you have questions about gradebook setup, please contact your college consultant.

The video below

  • demonstrates Demonstrates how to set the Aggregation
  • explains Explains how point values are related to the total score
  • Explains Exclude empty grades (1:06)
  • Demonstrates demonstrates how to add a graded grade item or category(1:1846)
  • demonstrates Demonstrates how to group graded items into a category (2:0343)
  • demonstrates Demonstrates how to specify a graded item as extra credit see what students see (3:1045)

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