Turn on Editing
In the topic location you wish to add the forum, select Add an activity or resource.
Select Forum.
Add new forum and insert Description of student requirements.
Under the Whole Forum Grading Option select Point. determine the maximum grade and select Rubric. Choose save and display to move the rubric.
Select Create new grading from a template. Search for Whole Forum Grading Rubric and click on Use this template. Finally, on the confirmation screen, select Continue to view and approve this choice. Edit where needed and publish to course.