When I heard the news last week that the Department of Education is aiming to subject 4-year-olds to high-stakes testing, all I could do was shake my head in disbelief and despondently mutter a slightly altered riff off "The Big Lebowski's" Walter Sobchak. Four-year-olds, dude. [. . .] Finland's story, recounted in the new documentary "The Finland Phenomenon," is particularly striking. According to Harvard's Tony Wagner, the country's modernization campaign in the 1970s included a "transforming of the preparation and selection of future teachers." "What has happened since is that teaching has become the most highly esteemed profession [in Finland]," says Wagner, who narrates the film. "There is no domestic testing ... because they have created such a high level of professionalism, they can trust their teachers." [. . .] Where Finland rejects testing, nurtures teachers, and encourages its best an...