Course grade calculations depend on your gradebook's organization and grade entry setting, points (described here) or percentages:
- No categories (default) - Each gradebook item is assigned a simple point value. The course grade is determined by the student's total score divided by the total points possible.
- Categories only - Categories are used to group gradebook items, where items are assigned a simple point or percentage value. Similar to a gradebook with No categories, the course grade is determined by the student's total score divided by the total points possible. This structure provides the option to drop the lowest grade(s), keep the highest grade(s), or drop the highest grade(s) within a Category.
- Categories and weighting- Items are grouped into categories, where each category is assigned a percentage of the course grade. The total score of all items in a category will comprise the category percentage of the course grade. This structure provides the option to drop the lowest grade(s), keep the highest grade(s), or drop the highest grade(s) within a category.
No Categories
In a default gradebook with No categories, course grades are calculated for each student by dividing the sum of the scores received for all graded items by the total points possible for those items.
Note: Ungraded items are not included in a student's course grade. Leaving a grade entry blank reduces the total points possible by the point value of the ungraded item for that student.
In the example pictured above, most students were graded out of 300 total points. However, Student Kinne has not received a grade for Portfolio (100 points possible). Thus, their current course grade is calculated with 181/200 = 90.5%.
Categories only
With Categories only, course grades are calculated the same as in a gradebook with No categories (described above). However, if all items in a category have the same total point value, there is the option to automatically drop the lowest or highest grades or keep the highest grades within that category.
Dropped grades are omitted from the course grade calculation, and the total points possible in the category are reduced by the point value(s) of the omitted item(s).
By using the Keep Highest option instead of the Drop Lowest to drop the lowest grade(s), no grades will be dropped in the category until the number of items kept is exceeded.
See below for example calculations when grades in a category are dropped or kept.
Note: You must assign each item to a Category for the item to be included in student course grades.
Grades cannot be entered into a category with no items.
Ungraded items are not included in a student course grade. Leaving a grade entry blank reduces the total points possible by the point value of the ungraded item for that student.
Categories with Drop Lowest
Pictured above is a Gradebook with two categories: Homework and Portfolio. The Homework category drops the lowest grade, and includes two items, each worth 50 points. The Portfolio category includes Portfolio (100 points). There are 200 points possible because only two Homeworks and the Portfolio are included in the course grade calculation.
In the example, Batchelor received the following grades:
Homework:
- Homework 1 (43 points) (lowest grade - dropped)
- Homework 2 (46 points)
- Homework 3 (49 points)
Portfolio:
- Portfolio (89 points)
Since the Homework 1 grade is dropped, Batchelor's course grade is 92%:
- 46 + 49 + 89 = 184 points earned
- 184/200 = 92%
Categories with Keep Highest
Pictured above is a Gradebook with two (2) categories: Participation and Homework (not shown). The Participation category keeps the four (4) highest grades, and includes five (5) items, each worth 20 points. The Homework category includes Homework 1 (50 points) and Homework 2 (50 points). There are 180 points possible because only four (4) Participation items and the two (2) Homework items are included in the course grade calculation.
Student Batchelor received the following grades:
Participation:
- Class 1 (20 points) (1st highest grade - kept)
- Class 2 (20 points) (2nd highest grade - kept)
- Class 3 (20 points) (3rd highest grade - kept)
- Class 4 (20 points) (4th highest grade - kept)
- Class 5 (0 points) (5th highest grade - excluded)
Homework:
- Homework 1 (43 points)
- Homework 2 (46 points)
No grades are dropped yet because we have used the Keep Highest option, so Batchelor's grade is 92%:
- 20 + 20 + 20 + 20 + 43 + 46 = 169 points earned
- 169/180 = 0.9388 93.9 %
Categories & Weighting
Use Categories & weighting to group Gradebook items into categories and weigh each category as a percentage of the total course grade. The sum total of all category percentages must equal 100%.
For example, if Exams are worth 20% of the course grade, the Exams Category (20%) could include a Midterm Exam (50 points) and Final Exam (100 points).
Each student's course grade is the sum of the categories' weighted averages. See below for additional information about dropping and keeping grades, and for example calculations.
Note: You must assign each item to a Category for the item to be included in the course grade calculation.
Grades cannot be entered into a category with no items.
Ungraded items are not included in a student's course grade. If any grade entry is left blank, the total points possible within the Category are reduced by the point value(s) of the ungraded item(s) for that student.
Dropping and Keeping Grades
If all items in a Category have the same total point value, you can automatically drop the lowest or highest grades or keep the highest grades within that Category. Dropped grades are omitted from the course grade calculation, and the total points possible in the Category are reduced by the point value(s) of the omitted item(s).
By using the Keep Highest option instead of Drop Lowest to drop the lowest grade(s), no grades will be dropped in the Category until the number of items kept is exceeded.
Categories & Weighting - example calculations
Below is an example of how a gradebook with three weighted categories, Homework (30%), Participation (30%), and Exams (40%), would calculate a course grade.
The Gradebook calculates the weighted average in each Category by doing the following:
- Totaling the student's scores for all graded items in the category
- In the example, in Exams, Student Batchelor earned: Final Exam (95 points) + Midterm Exam (40 points) = 135 points
- In the example, in Exams, Student Batchelor earned: Final Exam (95 points) + Midterm Exam (40 points) = 135 points
- Totaling the point values for all graded items in the category
-
Final Exam (95 points) + Midterm Exam (40 points) = 150 total points
-
Final Exam (95 points) + Midterm Exam (40 points) = 150 total points
- Dividing the student's score by the total points and then multiplying that number by 100 to determine the Category average:
Student Batchelor's Category average in Exams is 90%:- 135/150 = 0.90
- 0.90 x 100 = 90%
- Applying the weight to the Category average
Because the Exams Category is worth 40% of the course grade, Student Batchelor's weighted average is 36:- To get 40% of a number, multiply the number by 0.4.
- 90 x 0.4 = 36
Tip: The Category average is shown in a column to the right of the Gradebook items in that Category.
The Gradebook totals the weighted averages to produce the course grade.
If Student 0181 received a Category average of 75% for Assignments and 85% for Quizzes, that student's course grade would be 82%, calculated as follows:
- Exams (40%) weighted average (shown above) = 36
- Homework (30%) weighted average = 0.3 x 82.5 = 24.5
- Participation (30%) weighted average = 0.3 x 83.3 = 25
- Course Grade = 36 + 24.5 + 25 = 85.5