Instead of worrying about getting a child subject-accelerated as far as possible in math just for the sake of being accelerated in math, I'd instead look at where they are in science. Are they on an accelerated track? What types of science do you think they'll be ready for and interested in during which years in high school - and then make a math plan from there. Some types of science classes will require calculus credit or concurrent enrollment. Some will require other (lower) levels of math achievement. Some won't require much math at all.
I will check this out. DD10 is crazy about science. We explained to her early last year (as did the AoPS teacher) that math and science are joined at the hip. She might be ready to listen to that now.
DD used to love math. I remember she and her big sister used to beg us to give them math problems for fun on road trips. What happened???
