Words help people form mathematical concepts

Language may play an important role in learning the meanings of numbers, scholars at the University of Chicago report.
A study based on research on deaf people in Nicaragua who never learned formal sign language showed that people who communicate …

Biracial and passing — as black

WASHINGTON, DC, December 8, 2010 — In a country with Jim Crow segregation laws and the “one-drop rule” determining who was black and therefore where and what a person was permitted to be, it’s easy to see why those who plausibly could, might pass…