[golergka]

Here's the book on math teaching lessons, and although it's in Russian, you can get an overall idea of the level of math involved by skipping through the pages: http://www.mccme.ru/free-books/57/davidovich.pdf

It describes a 4-year program, from 8 to 11 grade of russian school, for kids from 13-14 to 16-17 years old respectively.

[SamuelMulder]

Thanks! I'm very interested in this approach and will take a look. Wish I could find something like it in English, as I don't speak Russian :)