This plugin is part of a set of plugins belonging to the socialwall course format.
This block is used to indicate any due dates for activities such as an assignment or quizzes that have been added to a course. It is very similar to the standard Upcoming events block (calendar_upcoming) but it would also display any alerts posted by the teacher with its date. Alerts are posts with a special flag normally sent by teachers by using the socialwall format for a course.
A super big thank you to REMC Michigan http://remc.org for supporting and funding this project.