If you are in the course itself and need to exit, your progress by section is tracking within the course. When you come back to sign in, you will always see Cal’s introduction page.
To find your last place in the course, you will need to click on the red Menu tab in the upper-left corner of the course page. When the Menu box loads, you will see each unit listed, and the ones you have completed will have a red check mark. You just need to click on the first unit that does not have the progress mark, and it will take you right to it.
If you are in the exam and then exit it, it will not save your answers for you. You will need to go back to take the exam again and it will begin at the first question for you.