Do brain cells freeze in 15-year-olds?

Pop quiz. Of 30 wealthy nations, where do our 15-year-olds rank in average science scores? a) 1st b) 8th c) 13th d)17th How about in math scores? a) 1st b)10th c)16th d) 24th If you guessed “d” both times, you’re right.  Assuming this pattern carries...

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