What is the difference between not publishing an assignment and delaying an assignment?
If it's not published student's will not be able to access the assignment regardless of the available date. So say you create an assignment and DON'T publish it and have a delayed data of 12/14/2018 student will try to access the assignment on that date but will get an "Unauthorized" because it's not published.
Hope this helps.
Vicki, in addition to what Yaddira Balderrama-Smalls has outlined (thanks, Yaddira!), students will be able to see the listing for a published assignment with an Available date set in the future (i.e. in the Calendar, in the Course Summary on the Syllabus page, in their Grades view, on their To-Do lists, and so forth). Students cannot see a listing for an unpublished assignment anywhere, at all.
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