# Mathematics – Multi-age – Year A – Unit 20

This two-week unit develops student knowledge, understanding and skills that problems can be solved and represented in different ways.

Mathematics K-2 Syllabus © 2022 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:

• solve modelled problems concretely, pictorially, and symbolically to help develop fluency
• count and order a collection of items
• place numbers accurately on a number line
• use symbols to represent a story.

## Syllabus focus and content group

### Early Stage 1

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

• Instantly name the number of objects within small collections
• 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

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

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

#### Non-spatial measure – MAO-WM-01, MAE-NSM-01, MAE-NSM-02

• Time: Compare and order the duration of events using the language of time

### Stage 1

#### Representing whole numbers A – 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

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

• Use counting sequences of ones and tens flexibly
• Form, regroup and rename three-digit numbers

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

• Use flexible strategies to solve addition and subtraction problems

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

• Model and use equal groups of objects to represent multiplication
• Recognise and represent division

#### Forming groups B – MAO-WM-01, MA1-FG-01

• Represent multiplication and division problems

#### Non-spatial measure B – MAO-WM-01, MA1-NSM-01, MA1-NSM-02

• Time: describe duration using units of time