How do you complete the Academic Activity for the students?
Hi Tamika Hawkins , and Welcome to the Canvas Community!
Essentially you can't. Canvas, like most LMSs, associates course activity with a user. So when a graded activity is submitted, it is associate with the user who submitted; which in turn, associates the grade with that user.
There is a well supported feature idea that is currently open for voting at Submit an assignment on behalf of a student that you might be interested in participating in. Add you comments and use-case scenarios, and vote as appropriate.
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