Grading an assignment in your courses can be done easily in the following steps.
1. Click on Commerce to the left and then click Courses.
2. Click on the Degree.
3. Go to Curriculum.
4. Click the Assignments tab.
5. Click the Submissions
6. Select the Student and then download the submitted assignment to grade.
7. Enter the grade score in the Grade box and save.
6. The student automatically gets an email for a grade score and it also reflects in the Student's dashboard (course).