# Mathematics – Multi-age – Year B – Unit 3

What needs to be measured determines the unit of measurement – this unit develops student knowledge, understanding and skills of measurement.

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:

• measure, record, compare and estimate a variety of attributes including length, area, volume, and mass using informal and formal units
• explore and connect mathematical measurement concepts
• apply mathematical measurement techniques to solve problems and communicate their thinking.

### Early Stage 1

##### Representing whole numbers – MAO-WM-01, MAE-RWN-01, MAE-RWN-02
• Use the counting sequence of ones flexibly
• Instantly name the number of objects within small collections
• Connect counting and numerals to quantities
##### Geographic measure – MAO-WM-01, MAE-GM-01, MAE-GM-02, MA1-GM-02, MAE-GM-03
• Length – Use direct and indirect comparisons to decide which is longer
##### Two-dimensional spatial structure – MAO-WM-01, MAE-2DS-01, MAE-2DS-02
• 2D shapes – Sort, describe and name familiar shapes
• 2D shapes – Represent shapes
• Area – Identify and compare area
##### Three-dimensional spatial structure – MAO-WM-01, MAE-3DS-01, MAE-3DS-02
• 3D objects – Explore familiar three-dimensional objects
• Volume – Compare internal volume by filling and packing
• Volume – Compare volume by building
##### Non-spatial measure– MAO-WM-01, MAE-NSM-01, MAE-NSM-02
• Mass – Identify and compare mass using weight

### Stage 1

##### Representing whole numbers – MAO-WM-01, MA1-RWN-01, MA1-RWN-02
• Use counting sequences of ones with two-digit numbers and beyond
• Continue and create number patterns
• Represent numbers on a line
• Represent the structure of groups of ten in whole numbers
• Use counting sequences of ones and tens flexibly
##### Forming groups – MAO-WM-01, MA1-FG-01
• Represent and explain multiplication as the combining of equal groups
##### Geographic measure – MAO-WM-01, MA1-GM-01, MA1-GM-02, MA1-GM-03
• Length – Compare lengths, using uniform informal units
• Recognise and use formal units to measure the lengths of objects
##### Two-dimensional spatial structure – MAO-WM-01, MA1-2DS-01, MA1-2DS-02
• Area – Indirectly compare area
• Area – Compare rectangular areas using uniform square units of an appropriate size in rows and columns
##### Three-dimensional spatial structure – MAO-WM-01, MA1-3DS-01, MA1-3DS-02
• Volume – Compare internal volume by filling and packing
• Volume – Compare volume by building
• Volume – Measure and compare the internal volumes (capacities) of containers by filling
• Volume – Compare containers based on internal volume (capacity) by filling and packing
##### Non-spatial measure – MAO-WM-01, MA1-NSM-01, MA1-NSM-02
• Mass – Investigate mass using an equal-arm balance