It isn't necessarily a money issue. Here in France we also got rid of classes with different levels in favor of a "one size fits all approach", for ideological

It isn't necessarily a money issue. Here in France we also got rid of classes with different levels in favor of a "one size fits all approach", for ideological reasons. As such a school can have 3 teachers, but they'll all teach the same thing, rather than having one teach a slightly more advanced curriculum, and one teach a slightly simpler one. The end result is actually pretty bad. The more advance kids are bored, the ones who need a bit more help are completely lost, and only those who happen to be exactly in the middle actually get something. The original idea was to level social distinctions, but in practice it just broke the school system and in doing so increased inequality.