An unusual deli sign asking customers to refrain from discussing mathematics is making waves on the Internet. An unusual deli sign asking customers to refrain from discussing mathematics is making ...

A sign at a Middletown, Conn., deli caught Anna Haensch's eye. It read, "Please refrain from discussing mathematics while waiting in line." Haensch, who teaches mathematics at Pittsburgh's Duquesne ...

Taken very literally, not all students are created equal -- especially in their math learning skills, say researchers who have found that not fully understanding the "equal sign" in a math problem ...