You should start this class by downloading the class materials from this page (then you’ll have them forever and you can view them offline). Downloading the video and watching it offline is often a good solution for those with slower internet speeds as it allows you to play the video without any playback interruptions caused by a slow connection. The class audio file is a good way to refresh your memory (you can play it on your iPod while doing laundry or dishes, etc. or you can listen to the class while you’re on the go).
After downloading the materials, you should read the class manual, watch the video, and then take your exam. I recommend taking the exam soon after reading the manual and watching the class video so that the information is still fresh in your mind.