# Mathematics – Stage 1 – Year B – Unit 22

Patterns have something that repeats over and over and over again – this unit develops student knowledge, understanding and skills of two-dimensional shapes and their attributes and properties.

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:

• sort collections using attributes and properties
• recognise, name and explore properties of two-dimensional shapes
• investigate repeating shape patterns that grow, shrink, radiate and are symmetrical
• investigate repeating number patterns that grow and shrink.

## Syllabus focus and content group

### Stage 1

##### Representing whole numbers A – MAO-WM-01, MA1-RWN-01
• Use counting sequences of ones with two-digit numbers and beyond
• Continue and create number patterns
• Represent the structure of groups of ten in whole numbers
##### Representing whole numbers B – MA1-RWN-02
• Use counting sequences of ones and tens flexibly
##### Combining and separating quantities A – MAO-WM-01, MA1-CSQ-01
• Use flexible strategies to solve addition and subtraction problems
##### Combining and separating quantities B – MA1-CSQ-01
• Form multiples of ten when adding and subtracting two-digit numbers
##### Two-dimensional spatial structure A– MAO-WM-01, MA1-2DS-01
• 2D shapes: Recognise and classify shapes using obvious features
##### Two-dimensional spatial structure B– MAO-WM-01, MA1-2DS-01, MA1-2DS-02
• Recognise and classify shapes using obvious features
• Represent, combine and separate two-dimensional shapes
##### Data A– MAO-WM-01, MA1-DATA-01
• Ask questions and gather data
##### Data B– MAO-WM-01, MA1-DATA-02
• Identify a question of interest and gather relevant data
• Create displays of data and interpret them