A Dictionary of Units of Measurement
This interesting and easy-to-use site looks at the history and meaning of many measurement terms, including Metric, International, and English Customary Systems. The site, by the Center for Mathematics and Science Education at the University of North Carolina at Chapel Hill, also features explanations of Apgar scoring, hat sizes, radiocarbon year conversion, and many other tables and scales.
Russ Rowlett, University of North Carolina at Chapel Hill
• High School Middle School Elementary School
Laura Bergman
