# Multi-age K–2, mathematics, Year B – Unit 01

Collections of 10 are really useful– this unit introduces students to the big idea that collections of 10 are useful.

## 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 this unit students will learn to:

- notice, wonder, and ask questions about mathematical concepts around them
- count collections of objects by organising them and paying attention to the structure of groups
- combine and separate quantities
- recognise and explain how a collection of objects has been sorted
- describe two-dimensional spatial structures
- organise information into simple data displays and interpret these displays.

## Syllabus focus area and content groups

**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
- Identify part-whole relationships in numbers up to 10

**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

**Data – MAO-WM-01, MAE-DATA-01, MAE-DATA-02**

- Respond to questions, collect information and discuss possible outcomes of activities
- Organise objects into simple data displays and interpret the displays

**Representing whole numbers – MA1-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
- Form, regroup and rename three-digit numbers

**Combining and separating quantities – MAO-WM-01, MA1-CSQ-01, MA1-CSQ-02**

- Use advance count by one strategies to solve addition and subtraction problems
- Recognise and recall number bonds up to ten
- Use flexible strategies to solve addition and subtraction problems
- Represent equality
- Represent and reason about additive relations
- Form multiples of ten when adding and subtracting two-digit numbers
- Use knowledge of equality to solve related problems

**Two-dimensional spatial structure – MAO-WM-01, MA1-2DS-01, MA1-2DS-02**

- Recognise and classify shapes using obvious features
- Represent, combine and separate two-dimensional shapes

**Data – MAO-WM-01, MA1-DATA-01, MA1-DATA-02**

- Ask questions and gather data
- Represent data with objects and drawings and describe the displays
- Identify a question of interest and gather relevant data
- Create displays of data and interpret them