# Mathematics – 3–6 – Multi-age – Year A – Unit 3

This unit introduces the big idea that what needs to be measured determines the unit of measurement.

Mathematics K–10 Syllabus © 2023 NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales.

Students are provided with opportunities to:

• measure and compare lengths of objects using kilometres (Stage 3), metres, centimetres and millimetres
• compare and describe features of two-dimensional shapes
• measure, create and compare perimeters of two-dimensional shapes (Stage 3)
• represent and read analog time (Stage 2)
• represent and read digital, 12-hour and 24-hour time (Stage 3).

## Syllabus focus and content group

### 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

##### Two-dimensional spatial structure A – MAO-WM-01, MA2-2DS-01

2D shapes: Compare and describe features of two-dimensional shapes

##### Non-spatial measure A – MAO-WM-01, MA2-NSM-02

Time: Represent and read analog time

### Stage 3

##### 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: Solve problems involving the comparison of lengths using appropriate units
##### Two-dimensional spatial structure A – MAO-WM-01, MA3-2DS-01

2D shapes: Classify two-dimensional shapes and describe their properties

##### Two-dimensional spatial structure B – MAO-WM-01, MA3-2DS-01

Dissect two-dimensional shapes and rearrange them using translations, reflections and rotations

##### Non-spatial measure A – MAO-WM-01, MA3-NSM-02

Time: Compare 12- and 24-hour time systems and convert between them

##### Non-spatial measure B – MAO-WM-01, MA3-NSM-02

Time: Solve problems involving duration, using 12- and 24-hour time