Hi there @MeredithRussell! Unfortunately, Canvas doesn't currently have the option for instructors to control what students get notified about in the course other than for editing Pages. Over the years, many folks have noted the need for this in all areas, as well as how the option to notify/not notify students when making changes to a page doesn't work properly. But at this time, there is currently no way to restrict the notifications that go to the students from the instructor end.
