If I were in a time zone where the class times were during DS's waking hours, I'd have him in an AOPS online class quick as winking, fwiw. I ? third the recommendation for the books, even if the classes aren't of interest. Given a sufficiently challenging text, I disagree that it'd be a waste of time, though she certainly could just go on to calculus, or indeed to something else, e.g. more statistics.

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