To get the most out of CENTURY, always ensure that you watch the video and/or read the slideshow carefully. You should have a pen and paper available to take notes and do your working out. If you get a score that you are not happy with then go back and try the nugget again, spending more time on the learning material.
If you want an area to focus on specifically then look at your areas for improvement in your dashboard:
You can then search these nugget names in the My Courses tab.