# Mathematics – Stage 1 – Year A – Unit 1

Collections of ten are really useful – this unit develops student knowledge, understanding, and skills of place value, and how attributes can be used to sort objects.

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.

In this unit students will learn to:

• recognise, classify, and sort shapes using obvious features
• visualise, play, and investigate the base 10 numerical system
• ask questions, gather data, and represent data with objects and drawings.

## Syllabus focus and content group

### 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
• Represent the structure of groups of ten in whole numbers
##### Combining and separating quantities A – MAO-WM-01, MA1-CSQ-01
• Recognise and recall number bonds up to ten
• Use flexible strategies to solve addition and subtraction problems
• Represent equality
##### Combining and separating quantities B – MAO-WM-01, MA1-CSQ-01
• Form multiples of ten when adding and subtracting two-digit numbers
• Use knowledge of equality to solve related problems
##### Two-dimensional spatial structure A– MAO-WM-01, MA1-2DS-01, MA1-2DS-02
• 2D shapes: Recognise and classify shapes using obvious features
##### Two-dimensional spatial structure B– MAO-WM-01, MA1-2DS-01, MA1-2DS-02
• 2D shapes: Represent, combine and separate two-dimensional shapes
##### Data A– MAO-WM-01, MA1-DATA-01, MA1-DATA-02
• Ask questions and gather data
• Represent data with objects and drawings and describe the displays
##### Data B– MAO-WM-01, MA1-DATA-01, MA1-DATA-02
• Identify a question of interest and gather relevant data
• Create displays of data and interpret them