# Mathematics – Stage 1 – Year B – Unit 36

This two-week unit develops student knowledge and skills in understanding the many different situations where addition, subtraction, multiplication and division can be used.

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:

• investigate the 4 operations through problem solving
• explore inverse operations
• engage in meaningful activities using repeated halving and doubling.

## Syllabus focus and content group

### Stage 1

##### Representing whole numbers A – MAO-WM-01, MA1-RWN-01, MA1-RWN-02
• Represent numbers on a line
• Represent the structure of groups of ten in whole numbers
##### 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
• 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
##### Forming groups A – MAO-WM-01, MA1-FG-01
• Count in multiples using rhythmic and skip counting
• Use skip counting patterns
• Model and use equal groups of objects to represent multiplication
• Recognise and represent division
##### Forming groups B – MAO-WM-01, MA1-FG-01
• Represent and explain multiplication as the combining of equal groups
• Model doubling and halving with fractions
• Represent multiplication and division problems