The abacus was developed in the Middle East and areas around the Mediterranean in about 3000 BC.

A psychometrician is a person who practices the science of measurement, or psychometrics. The term psychometrics refers to the measurement of an individual’s psychological attributes, including the knowledge, skills, and abilities a professional might need to work in a particular job or profession. Also, psychometricians write exams such as…

Josephine Nguyen, a sixth grade student from Philadelphia, won the nationwide First in Math competition three years in a row. First in Math is a website for K-8 students that uses engaging games to promote learning and solidifying math skills. Nguyen, whose family did not own a computer until…