As a student
Students see a "Rate this course" tab when they are in the menu of the given course. When they the click the tab, the rating menu will appear, where they can rate the course with stars and through a written feedback. After clicking "Save" students submit their review. Please be aware that these reviews can't be edited afterwards!
As a teacher
As a teacher you will see the feedback by clicking the "Ratings" tab in the course page. You can see the individual ratings of students in this tab and the average amount of starts given in the course overview menu under the course category.