Perform metric to U.S. customary system (Imperial units) conversions.

Performance includes converting millimeters to inches, inches to millimeters, meters to feet, and feet to meters. Students should also be able to round conversions to the nearest whole unit.

Process/Skill Questions:

• When are metric measurements preferred to Imperial measurements, and vice versa?
• Why might it be necessary to convert measurements from U.S. customary to metric or from metric to U.S. customary?
• Why are measurements often rounded to the nearest whole unit?