Learning More 2022年5月2日 アメリカNew York Times新聞記事ニューヨークタイムス | copper_molewww.nytimes.comLearning More (Published 2022)https://www.nytimes.com/2022/05/02/briefing/school-education-gaps-funding-math.htmlWhy did U.S. schools make so much progress in the 1990s and early 2000s?
