Five subjects, one brain, four weeks
A student taking AP US History, AP Lang, AP Calc BC, AP Bio, and AP Psych in the same May has roughly 20 hours per subject for focused review — and that's optimistic. The real problem isn't 'how do I study one AP'; it's 'how do I study five without cross-contamination or burnout.' Separate courses per subject, with mastery analytics per course, mean you can switch contexts cleanly and see at a glance which exam needs attention this week.