Select the Course from the Course List.
At the top of the Course
Detail page click the 
Views button.
Then select Answer Key or Mastery Answer Key from the drop-down menu.
To view a course's answer keys:
Select the Course from the Course List.
At the top of the Course
Detail page click the
Views button.
Then select Answer Key or Mastery Answer Key from the drop-down menu.
Once the answer key loads, you can ensure that each question is properly written and correct answer(s) are properly marked. You can also print the answer key for future reference.