Common grade posting errors include: Please be sure that you double check the category weights for each of your classes, as category weight settings have a profound effect upon your grade averages when your gradebook is set to calculate term averages by weight. It may be helpful to refer to the images below for an explanation on where/how to check on category weights. Exhibit 1: Gradebook top tab, a particular class chosen from list, and Categories side tab. Exhibit 2: Notice that Categories side tab directs you to the Details side tab to change category weights. Exhibit 3: Category weights are edited in each class in the Categories section at bottom of Details side tab page. Also see the Gradebook setup guides.