After teaching too many overloaded, fatigued and burned-out IB students, the idea for this system was born out of a desire to alleviate stress by encouraging a consistent "little and often" revision strategy for the duration of the course. As only tiny minority took this advice, we developed a tool to support the desired process using sequences of automated questions at increased time intervals.
Hundreds of studies in cognitive and educational psychology have demonstrated that if you try to revise something a given number of times in one sitting, it won't stick nearly as well as if practised the same number of times over several days or weeks. Research also shows that increasing the interval between repetitions as you become more confident of mastery ensures that learning becomes more firmly embedded into long-term memory.
This system automates these principles of spaced repetition to encourage a consistent approach to independent study, better results and less stress in the run up to critical exam periods.