The usual advanced path is Algebra in 7th, Geometry in 8th, Algebra II/Trig 9th, Pre-Calc in 10th and AP Calc AB or AP Calc BC in 11th but no need to take both. (Lots of overlap between pre-Calc and AB and between AB and BC). Then either Multivariate and/or AP Stats in 12th. Regular Calculus instead of AP Calculus if one intends on taking the full Calculus series in college again. My kid got into an elite school for CS without the multivariate and is leaning towards taking the “B” part of Calculus again even though he got a 5 on his BC since it’s been a year since he did any real hard math, well except in his Physics C class.