# Stage 1, mathematics, Year B – Unit 26

This sample Stage 1 unit continues to explore the big idea 'equal means equivalent'.

Students are provided with opportunities to:

• use balance to explore equivalence
• combine and separate quantities.

### Syllabus focus and content groups

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

• Use counting sequences of ones with two-digit numbers and beyond
• Represent numbers on a line
• Use counting sequence of ones and tens flexibly

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

• Use advanced 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
• Use knowledge of equality to solve related problems

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

• Mass: Investigate mass using an equal-arm balance
• Mass: Compare the masses of objects using an equal-arm balance

## Syllabus

Syllabus outcomes and content descriptors from 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.

Category:

• Combining and separating quantities
• Mathematics (2022)
• Non-spatial measure
• Representing whole numbers
• Stage 1
• Unit

Business Unit:

• Curriculum and Reform