Tks for digging this out, howlerkarma. It was good reading.
For us, we don't have a clue about grade level. I just think in terms of topics of interest and we dig as deep as DS8 wants. So subjects are just called by their names- algebra, calculus, whatever. Science is even easier as they're delineated by subject group. DS just goes for it and we hunt down books, information, by topic. I don't/can't do anything at all about direction and rate or depth of learning but I do help with resources (exhausting!).
We have annual grade level exams to hand in as part of the requirement for homeschooling, but I don't envisage this to be an issue. At some stage, ds will have to take the SAT with an online hsld but that's a couple of years away. We'll enjoy ourselves in the meanwhile
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