Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Metric Olympic Games (Intermediate)
This activity can be used to introduce the metric system to students.
Colorado State University
Metric Numbers to Remember
Look to this site for many important numbers and conversion factors used between the metric system and the customary system, such as speed of light, body temperature, distance from sun to earth, plus more.
Texas Education Agency
Texas Gateway: The Language of Physics: Physical Quantities and Units
By the end of this section, you will be able to associate physical quantities with their International System of Units (SI) and perform conversions among SI units using scientific notation; relate measurement uncertainty to significant...
National Institute of Standards and Technology (NIST)
Nist: Rules & Style Conventions for International System of Units (Si)
The official rules for using the SI (metric) system in the US, based on the National Institute of Standards. Must download their handbook.
ibiblio
Ibiblio: How Many? A Dictionary of Units of Measurement
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...