# Choose Appropriate Units of Measurement for Length Area Volume Capacity and Mass

## Choose appropriate units of measurement for length, area, volume, capacity and mass (ACMMG108)

LO: To choose appropriate units of measurement for lengths, area, volume, masses and capacities.
Know:

• the basic metric units of measurement
• how to use scaled instruments to measure objects.

Understand:

• that there is the optimal use of specific units of measurement

Do:

• I can choose the appropriate units of measurement for length, area, volume, mass and capacity.

## Length

Length measurements are used to measure how long, how tall or how far apart objects are.
The most common units to measure length are:

• millimeters (about the thickness of a bank card)
• centimeters (about the width of a fingernail)
• meters (about the length of a cricket bat)
• kilometers (about 2 laps of the oval)

We use rulers to measure lengths.

We can also use tape measures and also trundle wheels

## Mass

Mass measurements are used to measure how much material there is in an object. It is sometimes confused with weight, which is how much pull gravity has on an object.
The most common units to measure mass are:

• milligrams (very tiny)
• grams (about the weight of a paperclip)
• kilograms (about the weight of a textbook)
• tonne (about the weight of a small car)

We use scales to measure masses.

## Capacity

Capacity measurements are used to measure how much an object can hold. It is often confused with volume, which is how much is there actually in an object.
The most common units to measure capacity are:

• milliliters (about 20 drops of water)
• liters (a jug of liquid)
• kiloliters (a large swimming pool)

We use cups to measure capacity

## Temperature

Temperature measurements are used to measure how hot or cold an object is.
The most common units to measure temperature are:        