# Measurement

Pronunciation: /ˈmɛʒ.ər.mənt/ Explain

Measurement is assigning a number to a location based upon a unit of measure. For example, if one is using the metric system of distance, the unit of measure is 1 meter. A measure of 2 meters is twice as long as a measure of 1 meter. A measure of 0.5 meters is half as long as a measure of 1 meter.

Common measurements include distance, time, mass, energy, force and angle.

A metric space is a geometric space with a method of measurement assigned to the space.

Measurement error is an important consideration. When measuring with any device, one is approximating the measure. For example, if the length of a piece of paper is measured with a metric ruler, typically the measurement is accurate to only 1 millimeter. Since the measurement is not mathematically exact, it introduces an error.

1. McAdams, David E.. All Math Words Dictionary, measurement. 2nd Classroom edition 20150108-4799968. pg 115. Life is a Story Problem LLC. January 8, 2015. Buy the book

• McAdams, David E.. Unit of Measure. allmathwords.org. All Math Words Encyclopedia. Life is a Story Problem LLC. 3/12/2009. https://www.allmathwords.org/en/u/unit.html.
• McAdams, David E.. Measurement Error. allmathwords.org. All Math Words Encyclopedia. Life is a Story Problem LLC. 9/3/2018. https://www.allmathwords.org/en/m/measurementerror.html.

### Educator Resources

McAdams, David E. Measurement. 12/21/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. https://www.allmathwords.org/en/m/measurement.html.

### Revision History

12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)