Hard work . Shanghai ranks first in math , reading and science among 15- and 16-year-olds . East Asian economies performed better than other regions in all three subjects . The United States did not do as well on any of these measures. Math scores have stalled or deteriorated in most countries .
Shanghai ranks first in math , reading and science among 15- and 16-year-olds . East Asian economies performed better than other regions in all three subjects . The United States did not do as well on any of these measures. Math scores have stalled or deteriorated in most countries .