A-N marking guide using rubric

[Ash42]

Hi, 

So hopefully this is an easy fix.

My school uses A-E marking with an N for non submit or lack of evidence. I am trying to use the rubric marking guide for assessments and I have a 20 point rubric. The calculation of grades is off and I'm struggling to work out how to fix it (I am using "display mark as" (letter guide)). I have tried points and percentages for my grading scheme.

For an example if I give a student 3 B's (4 points each section on rubric) and 1 A (5 points) the assignment is graded as an A. My school doesn't work with pluses and minuses, so the student would be marked as a B. 

I have attached screen shots of various marking schemes I've tried and a sample of the rubric just in case I have done something wrong there.

Hopefully this is enough information. Thank you for any help you can give.

[Gabriel33 · Accepted solution]

I believe the issue is how Canvas aggregates the different scores.

For example, using your second rubric, which seems reasonable:

When you type B, Canvas stores that as a 3.9 (the highest grade that's still a B). So one A and 3 Bs becomes: 5+3.9+3.9+3.9 = 16.7.
16.7 out of 20 is 4.175 out of 5, therefore an A.

Perhaps if you can type the midpoints of the ranges you can better achieve what you want. For example, by typing 4.5 instead of A and 3.5 instead of B, the total grade would be 4.5+3.5+3.5+3.5=15, and as 15/20 is 3.75/4, we have a B in the end.

[Ash42]

Thank you! I appreciate your help.