These sites are about length, volume, mass, and temperature and the metric system. Learn the history of the system and what the prefixes mean. Includes several sites that do online conversions, games, and in class activities. There is a link to eThemes Resource on customary and standard measurement.
Take this short quiz and then learn more about the metric system in the following links found at the bottom, "Mission: Metric" or the "Metric Timeline." Explore other links to learn about metric system in America and click on the "Climate Mars Orbiter" link to find out what can happen when two measuring systems are combined.
These sites have information on the customary system of measurement used in the United States. There are several online games and quizzes, some lesson plans, and many practice questions. There are links to eThemes Resources on time, temperature, and the metric system.