How do I set the weighting differently for different exams? The exams, by default called "quizzes," seem to be set up in such a way that no change of weighting for these can be done individually. If I need to set the weight for the cumulative final exam to be greater than the previous exams, how do I do this?

Patrick, without question, there are innumerable circumstances in which an instructor would like to assign different weight to different quizzes. In Canvas they are all termed "quizzes," even though one might be an exam, another might be a quiz, and another might be a test. They're all assessments, and in Canvas, they all fall under the broader umbrella of "Assignments," i.e. graded assessments.

There are several different ways you can weight these quizzes/exams/tests objective assessments differently so as to accomplish what you've described. The first method is set forth in the lesson to which Chris Hofer provided the link, namely, using weighted assignment groups--and that's the method I use, since I use weighted assignment groups to calculate final grades. I go about this by creating all of my quizzes and give them appropriate names; a quiz that is meant to be a midterm is called "Midterm Exam," a quiz that is meant to be a final is called a "Final Exam," and so forth. After I've created all of the objective assessments and other graded assignments in the course (in the example below, I've included some journals and discussions), I create assignment groups that correspond to the contribution each assessment or group of assessments make to the final grade, and I drag and drop the assignments, discussions, and quizzes into their appropriate assignment groups on the Assignments page. So I might have assignment groups that look like this:

The second way is a points-based weighting method, which works if you're using a points-based grading scheme. I don't, so I find this more difficult, but it's certainly possible. To accomplish this, you need to manipulate the points for each of your assignments and quizzes so that they contribute in correct proportion to the final grade. So in my grading scheme, your midterm exam would need to be worth 250 points, your final exam would need to be worth 350 points, the journals would be worth 100 points each, and the discussions would be worth 50 points each. The reason this is more difficult is that you would have to assign the points to each question in the midterm exam so that they total 250 points. For that reason, I find the weighted assignment group method far easier.

Does this clarify the process for you?