As the post I linked on an earlier submission about Finnish schools (http://www.amren.com/mtnews/archives/2010/12/pisa_scores_sho...) shows, European descended students in the United States did better than Estonians, and every other European country except Finland. And Koreans and Asian-Americans did better than Finland. So the language issue is mostly to totally irrelevant.
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As the post I linked on an earlier submission about Finnish schools (http://www.amren.com/mtnews/archives/2010/12/pisa_scores_sho...) shows, European descended students in the United States did better than Estonians, and every other European country except Finland. And Koreans and Asian-Americans did better than Finland. So the language issue is mostly to totally irrelevant.