See How do I add a rubric to a Forum or Topic? for information about first attaching a rubric.
Go to Discussions.
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Select the Forums tool from the tool menu of your site.
Select a topic.
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Select the Grade button in the student post.
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Enter grading and feedback.
Move down the page to locate the rubric area.
- Click one item per rubric criterion.
- Optionally enter comments about your selection within each criterion. Click Done to save the comments.
- Click Submit Grade.
The points will be added up automatically based on your rating selections. The total points earned will appear just below the rubric.