The World Bank has a round-up of the 2012 PISA scored that were just released. There really weren’t any surprises in the top group, which consisted primarily of East Asian countries. But there was some good news for Peru, which has improved more since 2000 than any other country (by 76 points in math, 57 in reading, and 40 in science). Of course, they were starting from a low base, but it is still impressive.
Here are the countries that have improved the most in each category: