Hi @dblunk
Welcome to the Canvas Community.
Great question. I've wondered the same thing from time to time.
As far as i know you can find out individually who has accessed Announcements.
Here's a guide for that, quite a handy tool:
How do I view the course access report for an individual user?
However this could be a bit cumbersome to look at each student.
You may need to remind students to configure their notifications so they are alerted when there is an Announcement.
Here's a guide to send them:
https://community.canvaslms.com/docs/DOC-10624-4212710344
I hope that helped a little. Sing out if you need a hand.
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