Poland A, America F

Twenty-five years ago, Americans like economist Jeffrey Sachs were running around Poland helping to turn moribund socialism into a vibrant market economy. Now, with the U.S. trying to fix its lagging educational system, it might just learn a thing or two from Poland, which in the past decade has moved sharply forward from the rear of the international pack and beats the U.S. on most performance measures. And it didn't even spend a lot money to get there.