Mini guides for teachers

Gradebook mini guide


Under construction...

What is grade Aggregation?
The Aggregation method of a category determines how the grade is calculated:

  • Mean of grades - Grade items are of equal weight
  • Weighted mean of grades - Weights of grade items can be adjusted
  • Simple weighted mean of grades - Weight of each grade item is its maximum grade less its minimum grade
  • Median of grades - The middle grade (or average of middle two grades)
  • Lowest grade
  • Highest grade
  • Mode of grades - The grade that occurs the most frequently
  • Natural - Maximum grade is the sum of the maximum grades of the grade items. Weights of grade items can be adjusted
Notes:
1. In the first three methods listed above, the category grade is a percentage
2. The Simple weighted mean of grades and Natural methods support Extra credit
3. The Natural method is somewhat non-intuitive when weights are used and the grades do not add up to 10 or 100.

As an example, suppose that there are four items in a category with maximum grades of 1, 2, 3 and 4, respectively.
Suppose the student scores the maximum grade in the first two items and zero in the last two.
His grade for the category is:
Mean of grades50%
Simple weighted mean of grades30%
Median of grades0.5
Lowest grade1
Highest grade2
Mode of grades0
Natural3/10
If, in addition, he has extra credit of one point:
Simple weighted mean of grades40%
Natural4/10
If the grades are weighted 4, 3, 2 and 1 respectively:
Weighted mean of grades70%
Natural (weights adjusted)7/10
See the top and bottom of the Gradebook setup for a course with most of the above categories and the top and bottom of the Single view for the student.


Comments