In the immortal words of Cady Heron, protagonist of cult-classic phenomenon 'Mean Girls,' math is beautiful because “it’ ...

A study by economists shows a wide gap between the kinds of math problems kids who work in retail markets do well and the kinds of problems kids in school do well. In India, many kids who work in ...

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of ...