I didn't schedule the books in any way. I just let dd move at her own pace, so books overlapped school years. A few times she worked on two books concurrently. She interrupted intro to algebra for geometry at chapter 12 or 13 (I'd need to look at the book to be certain.)
Between sixth grade (that's when AoPS prealgebra was released) and now, nearing the end of ninth grade she covered
Prealgebra (6)
Intro to algebra (6,7, smidge of 8)
Intro to counting and probability (7)
Geometry (7, smidge of 8)
Intermediate algebra (8, smidge of 9)
Intro to number theory (8, smidge of 9)
Precalculus (9---just finished yesterday!)
Because dd's interests have changed from All The Math All The Time, we will not be using AoPS Calculus for next year. Just not enough time with her other classes, unfortunately.
(We began homeschooling in fifth grade. That year we futzed around with math, using a variety of resources, ending with a school-y prealgebra text.)