# Multi-age 3–6, mathematics, Year A – Unit 14

This multi-age unit develops the big idea that what needs to be measured determines the unit of measurement.

In this 2-week unit, students are provided opportunities to:

• estimate, measure and compare the masses of objects using kilograms and grams
• identify the appropriate unit and device to measure mass when solving problems
• recognise whole-number and decimal representations of mass (Stage 3)
• measure and compare lengths of objects using metres (m), centimetres (cm) and millimetres (mm)
• use a variety of measuring devices to measure lengths and distances in different contexts, including perimeter (Stage 3).

## Syllabus focus and content groups

### Stage 2

#### Geometric Measure A – MAO-WM-01, MA2-GM-02

Length: Measure and compare objects using metres, centimetres and millimetres

#### Geometric Measure B – MAO-WM-01, MA2-GM-02

• Length: Use scaled instruments to measure and compare lengths
• Non-spatial measure A – MAO-WM-01, MA2-NSM-01
• Mass: Compare objects using the kilogram

#### Non-spatial measure B – MAO-WM-01, MA2-NSM-01

Mass: Use scaled instruments to measure and compare masses

### Stage 3

#### Represents numbers A - MAO-WM-01, MA2-RN-01, MA2-RN-02

• Decimals and percentages: Recognise that the place value system can be extended beyond hundredths
• Decimals and percentages: Compare order and represent decimals

#### Geometric Measure A – MAO-WM-01, MA3-GM-02

• Length: Use metres and kilometres for length and distances
• Length: Measure lengths to find perimeters

#### Geometric Measure B – MAO-WM-01, MA3-GM-02

• Length: Connect decimal representations to the metric system
• Length: Convert between common metric units of length

#### Non-spatial measure A – MAO-WM-01, MA3-NSM-01

• Mass: Choose appropriate units of measurement for mass
• Mass: Connect decimal representations to the metric system

#### Non-spatial measure B – MAO-WM-01, MA3-NSM-01

Mass: Convert between common metric units of mass

## Syllabus

Outcomes and content descriptors from Mathematics K–10 Syllabus (2022) © NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales, 2024.

Category:

• Geometric measure
• Mathematics (2022)
• Non-spatial measure
• Represents numbers
• Stage 2
• Stage 3
• Unit