To grade student responses to short-answer/open-ended assessments, go to the My Courses page, launch your course, and click on Assessments in the Course Menu.
This will bring up a list of all the assessment questions you (or another instructor) have added to the course.
Multiple-choice responses are scored automatically. Short-answer responses must be graded manually.
Clicking on a particular question will bring up a list of all student responses to that question. Use the Grade and Comment fields to provide scores and feedback for students.
Students can see their scores and feedback by clicking Feedback in the Course Menu.
For information about tracking the class's performance as a whole, please see this article.