Bottom Navigation The buttons on the bottom of the page allow you to navigate between pages and get technical help. Previous Go to the previous page. Next Go to the next page. Save Progress If you are working on a page that has exercises to fill-in, you can save your progress any time. Going to the previous or next page also saves your progress. Contact us if you ever need technical help. When you are ready to go to the next page, click the NEXT button below.