Not a high school math curriculum in my case, but a new type of PhD program in math / data science. Look for first doctorship in data science. It is aimed at helping participants find an executive job outside the academia from the ground up, while traditional PhD programs are aimed at turning you into an academic researcher. At the same time, the level of research offered in my program is of the same caliber as PhD programs in the top universities.
On a different topic, my approach to linear algebra or calculus is very different from the traditional approach. See my articles