The tireless PISA folks are back with the results of a test of math-related real world problem solving among 15 year olds in 44 upscale countries. (Check here for sample questions like how to find the quickest route on a map or how to adjust an air conditioner). The U.S. did not bad, scoring a little above the average for rich countries, but not as good as the Asians or the white countries with smart immigration policies (Canada, Australia, Finland).