Mathematics – Multi-age – Year A – Unit 17

This two-week unit introduces students to formal units of measurement in length and further develops student knowledge, understanding and skills of uniform informal units 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.

Students are provided opportunities to:

• compare, order and match using direct and indirect comparison with length, area, volume, and mass
• consider how choice of measuring unit affects accuracy
• learn why centimetres and metres are useful and how to measure with them.

Syllabus focus and content group

Early Stage 1

Representing whole numbers – MAO-WM-01, MAE-RWN-01, MA1-RWN-01 MAE-RWN-02, MA1-RWN-02
• Use the counting sequence of ones flexibly
• Connect counting and numerals to quantities
Combining and separating quantities – MAO-WM-01, MAE-CSQ-01, MA1-CSQ-01
• Model additive relations and compare quantities
• Identify part–whole relationships in numbers up to 10
Geometric measure – MAO-WM-01, MAE-GM-02, MA1-GM-02, MAE-GM-03
• Length: Use direct and indirect comparisons to decide which is longer
• Length: Create half a length
Three-dimensional spatial structure – MAO-WM-01, MA1-3DS-01, MAE-3DS-02, MA1-3DS-02
• Volume: Compare internal volume by filling and packing
• Volume: Compare volume by building
Non-spatial measure – MAO-WM-01, MAE-NSM-01, MA1-NSM-01
• Mass: Identify and compare mass using weight

Stage 1

Representing whole numbers A
• Represent the structure of groups of ten in whole numbers
Combining and separating quantities A
• Recognise and recall number bonds up to ten
• Use flexible strategies to solve addition and subtraction problems
• Represent equality
Geometric measure A
• Measure the lengths of objects using uniform informal units
Geometric measure B
• Recognise and use formal units to measure the length of objects
Three-dimensional spatial structure A
• 3D objects: Recognise familiar three-dimensional objects
• Volume: Measure and compare the internal volumes (capacities) of containers by filling
• Volume: Measure the internal volume (capacity) of containers by packing
• Volume: Construct volumes using cubes
Three-dimensional spatial structure B
• Volume: Compare containers based on internal volume (capacity) by filling and packing
• Volume: Compare volumes using uniform informal units
Non-spatial measure A
• Investigate mass using an equal-arm balance
Non-spatial measure B
• Compare the masses of objects using an equal-arm balance