Grading discussions is a very simple process in Blackboard. You should not only grade the students' submissions, you should provide feedback that helps them assess their learning. The two pitfalls to aviod in grading discussions are (1) make sure that you are viewing all of the students in the class when you assign grades, and (2) make sure you have closed the forum before you start grading.
Click on the Quiz Group below to take a brief self-test. You should take the test until you get all answers right.