While there is not a way to receive automated emails alerting you to student non-participation, Blackboard offers several methods (other than grades) to gauge student activity.
Most of these options can be found by visiting the Course Management > Evaluation area of a course. The first two options provide the easiest methods to find useful student information.
Use this area to quickly see the last time a student logged into your course (also available in the Grade Center). If you use Discussion Boards, it will also display the last date/time they made a post to forums and how many posts they made in each forum.
These reports allow you to view student performance, submissions, and grades compared to the class average. Click on a specific student to see their detailed performance. (Reports may take up to 30 seconds to load.)
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Course Reports provide an additional method to view information not just about student activity but also which content and tools are used in the course.
In a course, go to Course Management > Grade Center > Full Grade Center.
If you are using the Blackboard grade book for grading, there are several options to quickly scan through assessment performance.
Total/Weighted Total Column—have your grades add up throughout the semester
Color Coding—add color to cells based on grade range
Smart Views—create a Grade Center view of a subset of students based on criteria such as low scores or other information