To go back to a previous item, click the Back button, . This will return you to the preceding item in the lesson, provided that you have already completed it. If you have not completed the preceding item, the Back button is disabled.

In menu-enabled screens, you may also use the menu to open any exercise in the lesson, including ones you have already completed. In the menu, items you have completed will become green. Instructors may enable computer generated feedback on certain lesson items. If the feedback is enabled, items you have completed correctly will turn green and items with incorrect answers will become red in the lesson submenus.

If the menu is not enabled, however, you must use the Back button to redo an exercise. You may elect to skip a particular exercise and then go back and complete it. You may do so as long as you do not exit the lesson before going back. If you exit a lesson, you will not be able to go back to what you have already done or skipped when you open the lesson again.