Texas Instruments
Texas Instruments: Bingo!
This activity provides students with an opportunity to use a familiar game to determine the most appropriate units for a given situation.
Other
All math.com: Us/metric Conversion Tables
Convert metric measurements to U.S. Measurements and the reverse, too. Easy to follow tables have sections for area, length, mass,temperature and volume.
Fun Brain
Fun Brain: Measure It! (Measuring Lengths Game)
Practice using metric rulers and rulers with inches. Includes helpful feedback when questions are answered incorrectly.
National Council of Teachers of Mathematics
The Math Forum: Suzanne Alejandre's Designs With Circles
In the Islamic culture, circles are considered to be a unit of measurement and the basis for the organization of space. This is illustrated at this site by a series of exercises.