# Mathematics – Early Stage 1 – Unit 3

What needs to be measured determines the unit of measurement – introduces students to the big idea ‘What you want to describe decides what unit of measure to use’.

Mathematics K-2 Syllabus © 2021 NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales.

In this unit students will learn to:

• recognise that the attribute you want to describe informs the unit of measure you use
• describe, compare, and order measurable attributes including length, area, volume and mass
• share their thinking when working with others to solve problems.

## Syllabus focus and content group

### Early Stage 1

##### Representing whole number – MAO-WM-01, MAE-RWN-01, MAE-RWN-02
• Instantly name the number of objects within small collections
• Connect counting and numerals to quantities
##### Geometric measure – MAO-WM-01, MAE-GM-02
• Length: Use direct and indirect comparisons to decide which is longer
##### Two-dimensional spatial structure – MAO-WM-01, MAE-2DS-02
• Area: Identify and compare area
##### Three-dimensional spatial structure – MAO-WM-01, MAE-2DS-02
• Volume: Compare internal volume by filling and packing
##### Non-spatial structure – MAO-WM-01, MAE-NSM-01
• Mass: Identify and compare mass using weight