The nonprofit organization Common Core looked at curriculums, standards, and assessments in nine nations that consistently outrank the United States on the Programme for International Assessment (PISA) to see whether differences in countries' PISA scores are due to differences in the content they teach. Findings revealed that top-performing…

Educators and governments are paying increasing attention to international comparisons as they seek to develop effective policies to improve the performance of their education systems. Data from the Organization of Economic Cooperation and Development (OECD) are useful in revealing best practices across the world. Current data show that the United…