If your instructor provided you with an access code for a unit/assignment, the code provides access to all cases in that unit for the amount of time specified by your instructor. You do not need to enter an access code each time you log in to access that unit. Instead, navigate go to Home screen of this site, enter your login ID and password, and click Sign In. When you arrive at the Units page, click on an available unit to open it and then click the Start or the Continue link for a case section. If you've already completed a case section and want to review your score, click Review or Complete to open the score report (if permitted by your instructor's settings). Your instructor's settings determine the length of time that the score report will be available for your review.