What is the difference between a practice exercise, a graded quiz, and a graded exam?
A practice exercise is designed to give you more practice on a certain concept or skill. Practice exercises are not graded; they are provided so you can prepare for a graded assignment. A graded quiz is like a mini-test, one focused on only a concept or two. A graded exam is an assessment of your knowledge on certain skills and concepts covered in the course. The exam will cover all material leading up to it from the previous one. Final exams, however, may be cumulative, covering the entire course.