National Nanotechnology Infrastructure Network
Shrink Me!
The incredibly shrinking meter—decimeters to centimeters, to millimeters, and now to nanometers! Learners may have a difficult time visualizing particles on a nanoscale. Help them see a little clearer using a well-designed lesson...
University of Waterloo (Canada)
University of Waterloo: Metric 4
Test your knowledge at metric conversion by answering 30 questions on distance, length, volume, and weight.
Math Is Fun
Math Is Fun: Measuring Metrically With Maggie
Metric units for volume, mass, length and temperature are explained to a cute little alien called Maggie. There are lots of real life examples for comparison that younger children will understand.
National Council of Teachers of Mathematics
Nctm: Figure This: Math Challenges for Families
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...