America doesn't "track" students and teaches everybody. Other countries flush away the lower performing students to non-academic education as the years progress

America doesn't "track" students and teaches everybody. Other countries flush away the lower performing students to non-academic education as the years progress. This study was about 13-year olds. Most countries "flush away" (thank you for using a gratuitously denigrating term here) their students after 13, not before.