Looking at the grade for a single exercise (quiz, test, assignment, whatever)
Just click on the exercise from the main page of the course. You should be able to see your grade, and any accompanying comments from the instructor.
Looking at your course grade so far
- Go to the user menu at the top right of any page in Moodle, and click Grades.
- You'll be taken to a page with all your courses. Click on the course you want grades for.
- This should take you to a page with all your grades so far, with any comments from the instructor.
That same grades page will give you your grade so far in the course. If the instructor has set up the gradebook to mirror the grade weights in the syllabus, and has set up the course grade to be displayed in something easy to understand (like percent), this will give you an up-to-date picture of what your grade is in the course.