I'm writing a comparative study between mathematical teaching in my country (which sucks by the way) with others. However, I don't want to make it about today, globalization gives us a good notion of that; what I want is to understand how (mathematical) education was before WWI in England, Germany and France, which are the countries that produced the most genious mind in terms philosophy of mathematics. The problem is: I don't know any book who treats the subject. I already searched on archive.org and found nothing! Any help would be appreciated. Have a nice day.
One reference from before WWI:
A synoptic review from the middle ages to the nineteenth century of the curricula, the mathematics studied, methods of instruction, student life, notable students in mathematics, notable professors, and reforms at Cambridge; plus a brief history of the university.
If you want to have any idea about the mathematics education in Schools in Great Britain many years ago, you should read The Cockcroft Report. This documen is free access
There is an article about the educational system for studying mathematics in Germany in the 19. century:
Lorey, W. (1916). Das Studium der Mathematik an den deutschen Universitäten seit Anfang des 19. Jahrhunderts (pp. 85-86). http://dx.doi.org/10.1090/S0002-9904-1924-03856-7
Don't worry about the German title, the article is in English :-) You can also find a PDF online.