Helsinki, Finland

High-school students here rarely get more than a half-hour of homework a night. They have no school uniforms, no honor societies, no valedictorians, no tardy bells and no classes for the gifted. There is little standardized testing, few parents agonize over college and kids don't start school until age 7.

Yet by one international measure, Finnish teenagers are among the smartest in the world. They earned some of the top scores by 15-year-old students who were tested in 57 countries. American teens finished among the world's C students even as U.S. educators piled on more homework, standards and rules. Finnish youth, like their U.S. counterparts, also waste hours online. They dye their hair, love sarcasm and listen to rap and heavy metal. But by ninth grade they're way ahead in math, science and reading -- on track to keeping Finns among the world's most productive workers.

The Finns won attention with their performances in triennial tests sponsored by the Organization for Economic Cooperation and Development, a group funded by 30 countries that monitors social and economic trends. In the most recent test, which focused on science, Finland's students placed first in science and near the top in math and reading, according to results released late last year. An unofficial tally of Finland's combined scores puts it in first place overall, says Andreas Schleicher, who directs the OECD's test, known as the Programme for International Student Assessment, or PISA. The U.S. placed in the middle of the pack in math and science; its reading scores were tossed because of a glitch. About 400,000 students around the world answered multiple-choice questions and essays on the test that measured critical thinking and the application of knowledge. A typical subject: Discuss the artistic value of graffiti.