The International System of Units (SI), commonly known as the metric system, is the international standard for measurement. SI use in product design, manufacturing, marketing, and labeling is essential for United States industry's success in the global marketplace. SI measurement system familiarity and fluency must be developed along the Science, Technology, Engineering, and Mathematics (STEM) career pipeline to produce an U.S. engineering workforce with this essential 21st century skill.
- NIST Metric Trivia Quiz– How much do you know about the metric system (SI)? Try the NIST Metric Trivia Quiz online or use the Alexa skill to test your knowledge and be on your way to thinking metric!
- SI Basics– Learn more about the 7 base units that define 22 derived units with special names and symbols
- SI Teacher Kits Available for Educators– Obtain a free set of metric education resources for your classroom
- Education Resources on the Metric System (SI)– A collection of resources to enrich classroom curriculum and reinforce student learning
- Occupational Metric System Training– A workbook series containing educational information that apply metric measurements within a variety of occupations
- Writing with SI (Metric) Units– Find quick answers to SI questions that arise while writing and reviewing technical documents
- Presidents and Measurements– Measurement education resources celebrating Presidents’ Day national holiday
The Measurement League: Guardians of the SI
The Measurement League: Guardians of the S.I. use their incredible powers of measurement to perform amazing feats of science and engineering. This comic book-style video animation series has been developed to help middle school students learn about the 7 SI base measurement units. Videos are available on the NIST YouTube Channel.
Episode 1: Desperate Measures!
The SI Superheroes use the power of measurement to help a stranded soccer player get home.
Episode 2: Running Out of Time!
The SI Superheroes battle archvillain Major Uncertainty in a race to keep the world's satellite navigation system "on time."
Episode 3: Mass Hysteria!
The nefarious Major Uncertainty has kidnapped Monsieur Kilogram, putting the world’s measurements of mass in jeopardy.
SI Superhero Card Set (PDF)- Download a printable version of the Superhero Cards. Each card in this set lists a different superhero’s name, picture, symbol, and the measurement unit represented. A short description of the superhero’s powers are on the back of each card.