“American eighth-graders score 66 points below their Japanese counterparts in math, yet almost 40 percent of American children think they’re good in math. That figure for Japan is 4 percent. “This comes from an editorial by Richard Cohen in the Washington Post. He’s mixing together studies and does not explain what 66 points even means (is a 1% or 20% difference?). But, still, you get the point.
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