Fair point. IOW, what you're saying is: If learning math is your goal, is this the best (or most cost effective) way to do it? Sure, for some it would be, but f

Fair point. IOW, what you're saying is: If learning math is your goal, is this the best (or most cost effective) way to do it? Sure, for some it would be, but for others they'd be better off with books or some other alternative.