There are several ways to know that you have completed a module:

You can use the Grade Tracking Sheet from your syllabus as a checklist when you turn in work. Check off items when you turn them in.

You can check your grades in Blackboard to confirm that you have turned in the required work and to check your mastery level for each module. You can watch Check Grades in Blackboard for instructions on checking your grade.

You will get a Blackboard message from your professor when your completion of each module is entered. This message also goes to your ACCmail.

No. The mastery level  is never rounded. Your mastery level must be 80% or higher.  You should revise and resubmit your lowest scoring work for that module. 

Yes. One of the two criteria for completing a module is that you turn in all required work.

A mastery level of 80% means that your required work must earn at least 80% of the total points possible in the module as a whole. You do not need to earn 80% or better on each project, assessment, assignment, or test to meet this mastery level. This mastery level is computed for the entire module. 

You should revise and resubmit work that does not initially demonstrate a mastery level of 80%. Remember, the mastery level is in the module as a whole.