# Multi-age K–2, mathematics, Year B – Unit 15

This two-week unit develops students' knowledge and skills in understanding that a fraction can mean half a collection or half a measure.

## 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.

Students are provided opportunities to:

• engage in meaningful activities using repeated halving to explore halves, quarters or eighths
• create and explore collections of objects that have or have not been divided into halves, quarters or eighths
• share objects into smaller groups and recognise if the number in each group is equal or not
• investigate division through sharing and grouping a collection, including leftovers.

## Syllabus focus area and content groups

### Early Stage 1

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

• Use the counting sequence of ones flexibly
• Recognise number patterns
• 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
• Identify part–whole relationships in numbers up to 10

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

• Investigate equal groups by sharing

Record grouping and sharing

Geometric measure – MAO-WM-01, MAE-GM-03

Length: Create half a length

### Stage 1

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

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

Forming groups – MAO-WM-01, MA1-FG-01

• Part A – Recognise and represent division
• Part B – Model doubling and halving with fractions

Geometric measure – MAO-WM-01, MA1-GM-03

• Part A – Length: Subdivide lengths to find halves and quarters
• Part B – Length: Repeatedly halve lengths to form eighths

## Resource

Category:

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