Do we need a longer school day and/or school year to help our students “compete in the global economy”? If you’ve paid attention to Terry Stoops’ work, you already know the answer.

TIME offers more evidence for this view in a new feature focusing on education in Finland.

The Finns are as surprised as much as anyone else that they have recently emerged as the new rock stars of global education. It surprises them because they do as little measuring and testing as they can get away with. They just don’t believe it does much good. They did, however, decide to participate in the Program for International Student Assessment (PISA), run by the Organisation for Economic Co-operation and Development (OECD). And to put it in a way that would make the noncompetitive Finns cringe, they kicked major butt. The Finns have participated in the global survey four times and have usually placed among the top three finishers in reading, math and science. …

… But Finland’s sweeping success is largely due to one big, not-so-secret weapon: its teachers. “It’s the quality of the teaching that is driving Finland’s results,” says the OECD’s Schleicher. “The U.S. has an industrial model where teachers are the means for conveying a prefabricated product. In Finland, the teachers are the standard.”

That’s one reason so many Finns want to become teachers, which provides a rich talent pool that Finland filters very selectively. In 2008, the latest year for which figures are available, 1,258 undergrads applied for training to become elementary-school teachers. Only 123, or 9.8%, were accepted into the five-year teaching program. That’s typical. There’s another thing: in Finland, every teacher is required to have a master’s degree. (The Finns call this a master’s in kasvatus, which is the same word they use for a mother bringing up her child.) Annual salaries range from about $40,000 to $60,000, and teachers work 190 days a year.