# Multi-age K–2, mathematics, Year A – Unit 16

Provide students with opportunities to explore different situations to use addition, subtraction, multiplication, and division in this two-week, multi-age sample unit.

## Syllabus

Syllabus outcomes and content descriptors from the 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.

In 'There are many different situations where addition, subtraction, multiplication and division can be used', students are provided opportunities to:

• rename and partition numbers
• use flexible strategies to solve addition and subtraction problems
• represent equality
• use equal groups to represent multiplication
• use flexible strategies to solve multiplication and division problems.

## Syllabus focus and content groups

### Early Stage 1

Representing whole numbers – MAO-WM-01, MAE-RWN-01, MAE-RWN-02

Connect counting and numerals to quantities

Combining and separating quantities – MAO-WM-01, MAE-CSQ-01, MAE-CSQ-02

Model additive relations and compare quantities

Forming groups – MAO-WM-01, MAE-FG-01, MAE-FG-02

• Investigate and form equal groups by sharing
• Record grouping and sharing

### Stage 1

Representing whole numbers – MAO-WM-01, MA1-RWN-01, MA1-RWN-02

• Part A – Use counting sequences of ones with two-digit numbers and beyond
• Part A – Represent the structure of groups of ten in whole numbers
• Part B – Use counting sequences of ones and tens flexibly
• Part B – Form, regroup and rename three-digit numbers

Combining and separating quantities – MAO-WM-01, MA1-CSQ-01

• Part A – Use advanced count-by-one strategies to solve addition and subtraction problems
• Part A – Use flexible strategies to solve addition and subtraction problems
• Part A – Represent equality
• Part B – Use knowledge of equality to solve related problems

Forming groups A – MAO-WM-01, MA1-FG-01

• Part A – Count in multiples using rhythmic and skip counting
• Part A – Model and use equal groups of objects to represent multiplication
• Part A – Recognise and represent division
• Part B – Represent and explain multiplication as the combining of equal groups
• Part B – Represent multiplication and division problems

## Resource

Category:

• Combining and separating quantities
• Forming groups
• K-2
• Mathematics (2022)
• Representing whole numbers
• Unit