The Center for Mathematics and Science Education at the University of North Carolina at Chapel Hill provides an interesting and easy-to-use dictionary of the history and meaning of many measurement terms. Metric, International, and...

In this ninth and final unit of an intermediate Spanish course, students learn to listen, speak, and write about movies and other activities that Spanish-speaking peoples pursue in their free time. Includes modeling of oral Spanish...

During the 100 meter dash in the 1988 Olympic Games in Seoul, Florence Griffth-Joyner was timed at 0.91 seconds for 10 meters. At that speed, could she pass a car traveling 15 miles per hour in a school zone?