Do we have good universal descriptors for math levels? I'm a big fan of accessibility, and I think your idea about tweaking language to reach a wider audience c

Do we have good universal descriptors for math levels? I'm a big fan of accessibility, and I think your idea about tweaking language to reach a wider audience could be a big win for increasing the article's impact. To update the article to include your recommendations, the author would probably need some kind of "cross-walk" which would map the American perspective to a more universally understood framework. Would you happen to know what "pre-calculus's" opposite number would be in the universal framework?