You will get a study plan with your course, I went with BGS and they do it in frames, eg it will say read chapter 1 & 2 of human performance and chapter 1-3 of something else then do progress test number 1, there is a lot of crossover on some of the subjects.
Contact the school where you plan to study and see if they will give you the study plan, each school will be different, some do 2 modules, some 3 etc, but you will end up reading each manual cover to cover.