Obviously, free response type questions can be worded in different ways, but there are still going to be major points that any answer should incorporate that some students might leave out. It's really handy to have those available to them once submissions are closed for an quiz, especially when it is a "pre-test" homework quiz that is practice for an upcoming closed-book exam.
I am not asking Canvas to grade the essays for me, just to provide a place for the students to see the kinds of answers I am looking for when I grade (once the quiz or assignment is closed).
I want the students to be able to see the points they should have covered before I even start grading. Some are impatient to see how they did, and I also use the quiz feature to create homework assignments that are a combination of essay and fill in the blank questions (which at least can be graded automatically, so I only have to focus on the free response questions).
For instance, if I ask them to list the anatomical characteristics of an epithelial tissue and explain their answers, some students may leave out some of the characteristics covered in class and their reading, or they might not explain their answers and just provide the list, or they may give me functions and not anatomical characteristics, or they may even have some of the characteristics mixed up with those of a different tissue type.
I realize that different disciplines have different kinds of "free response" or "essay" type questions, including ones where the focus is more on structure than required content, but the above approach is really common in the sciences. Having a key really cuts down on the frantic emails from students who don't know why they lost two out of four points or whatever without my having to copy paste the key in the grading comments for each student individually.
I can post a key to the modules and have it open after the closing date for a quiz or a homework assignment created as an open-book quiz, but that involves at least a couple more steps, including uploading the file from my computer to each separate class section. Also, in my experience, some students never check the modules, even when I announce that the key will be there and available on a given date.
Given that different instructors do things different ways, and that disciplines vary too, it would be great to have more flexibility on how to set things up.
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