Yes, usually about 10 days prior, tho YMMV. Unfortunately they don't give you any guidance on which ones to focus on first. I recommend doing the ancillary ones like the AMC CRAF videos, Jepps, and the HR related ones just to get those out of the way. You'll have time in class and out to do the systems lessons, so spend your last week at home dealing with life and don't sweat the systems CBTs.