The videos below were made in Fall 2011 for another Advanced Grammar class that had an earlier edition of your book. For this reason, the page numbers mentioned are different; your version of this explanation is on pages 360-361. Also, the Moodle site looks a bit different. However, the information is the same.
At the beginning of the first video, I refer to the a chart; your present version of this chart is #4 in the Quick Grammar Review Handouts.