In Course Navigation, click the Settings link.
Click the Course Details tab.
Click the Enable course grading scheme checkbox.
Click the view grading scheme link.
Canvas will show you the Canvas default grading scheme. If you want to select another grading scheme, click the Select Another Scheme link.
To view a grading standard, click the title of the grading scheme [1].
When you have located the grading scheme you want to use in the course, click the Use This Grading Standard button [2].
View your enabled grading scheme. Click the Done button.
Click the Update Course Details button.