Elementary Measurement Unit Key Vocabulary

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Area - the amount of space an object occupies

Centimeter - a standard unit of length in the metric system equal to 1/100 of a meter (may be mentioned in Lesson 1 but not defined until Lesson 3)

Convert - to change

Distance - the amount of space between two things, places, or people

Foot - a standard unit of length in the US Customary system equal to 12 inches

Height - the vertical (up and down) distance from the top of an object or figure to its base

Inch - a standard unit of length in the US Customary system equal to 1/12 of a foot

Length - a measurement of the distance from one point to another

Measure - to determine a quantity/amount

Measurement - a determined quantity/amount

Meter - a standard unit of length in the metric system equal to 100 centimeters (may be mentioned in Lesson 1 but not defined until Lesson 3)

Meter Stick - a usually wooden tool used to measure lengths of up to 1 meter

Nonstandard - not the same (e.g., the width of your thumb versus the width of my thumb) or not marked (e.g., a piece of string used to measure length)

Perimeter - the distance around a figure along its edges

Quantity - an amount of something

Rectangle - a 4-sided figure in which opposite sides are equal and angles measure 90º

Ruler - a wooden or plastic tool used to measure lengths up to 12 inches

Square - a figure that has four equal sides and angles that measure 90º

Standardized - the same

Tape Measure - a tool consisting of a flexible ribbon of cloth or metal used to measure lengths up to several feet

Unit - a set amount used to consistently determine quantities

US Customary System of Measurement - a system of measurement that includes units such as inches, feet, yards and miles (for length); also referred to as imperial units or English units; this system is not commonly used outside of the United States

Width - measurement of the distance from one side or edge to the opposite side or edge

Yard Stick - a usually wooden tool used to measure lengths up to 3 feet (1 yard)