This is a very short and easy-to-complete course. All you need to do to succeed is to give quality attention to the course. First, complete the pre-test. Then go ahead and watch the short presentations and take notes on important points. Participate in the discussion threads and complete the quizzes and you will complete the course. You can read the course syllabus for more details on how to succeed in the course.
If you have any problems or questions during the course let the instructor know by email.