When I was in high school, my history teacher tried an experiment with a classmate known for her enthusiastic and expressive communication style. The girl had raised her hand to answer a question, and ...

If we could teach American Sign Language to all students, including hearing students, from kindergarten to 12th grade, the benefits would be extraordinary. It would not only eradicate the biggest ...

Correction: The original video with this piece did not include captioning for some of the American Sign Language seen on screen. The video has been updated to include ...

While working at the Salk Institute for Biological Studies in La Jolla, Calif., the late cognitive neuroscientist Ursula Bellugi discovered that, much like spoken language, sign language was made up ...