Two recognized systems of measurement

The customary system is a system of measurement commonly used in the United States.

The international system is the most widely used system of measurement in the world.

International System (green) & Customary System (red)

Customary System The customary system is a system of

measurement commonly used in the United States.

Customary System Length: inches (in), feet (ft), yards (yd),

miles (mi)

Customary System Volume: ounces (oz), cups ( C), pints

(pt), quarts (qt), gallons (gal)

Customary System Mass: pounds (lb), tons (T),

Customary System Temperature: Degrees Celsius (˚C)

The International System The international system is the most

widely used system of measurement in the world.

The International System Length: length is measured in meters. kilometer (km), decimeter (dm),

centimeter (cm), millimeter (mm), micrometer (µm), nanometer (nm)

The International System

The International System Volume is measured in cubic meters (m³) cubic centimeters (cm³), liter (L), milliliter

(mL)

The International System

The International System Mass is measured in kilograms (kg). gram (g), kilogram (kg), milligram (mg)

The International System

The International System Temperature is measured in Kelvins. Kelvin (K)

The International System

How big is a …? http://www.cellsalive.com/howbig.htm

Customary or International ?

Cubic Centimeter (cm³)

Customary or International ?

Foot (ft)

Customary or International ?

Centimeter (cm)

Customary or International ?

Gallon (g)

Customary or International ?

Micrometer (µm)

Activity Open your journals. Draw a t-chart, labeling one side

customary system, and the other side international system.

Take the units that are given in the next slide and separate the customary system units from the international system units.

km, ft, oz, cm, mm, µm, nm, mi, in, lb

CUSTOMARY SYSTEM INTERNATIONAL SYSTEM