Know what I would pay for? A tool that generates math problems for me to use as exercise each day that adapts to my performance / forgetting curve. Like, my MV calc is rusty and I'd rather pay daily maintenance time than sporadic bulk relearning episodes.
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So you'd just love to input your answers? And check if it's correct or not?
@DavidDanatzkoThanks. Twitter will use this to make your timeline better. UndoUndo
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