# Early Stage 1, mathematics – Unit 09

Explore solving problems by comparing, combining and separating quantities in this two-week sample unit.

## 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.

In this unit – 'Collections of objects can be changed by adding more (combining) or taking some away (separating)', students are provided with opportunities to:

• separate and take away part of a group to determine how many
• compare 2 or more groups to determine equality or how many more
• combine 2 or more groups to identify the relationship between the parts and the whole.

### Syllabus focus and content groups

Representing whole number – MAO-WM-01, MAE-RWN-01, MAE-RWN-02

• Instantly name the number of objects within small collections
• Recognise number patterns
• Use the counting sequence of ones flexibly
• 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

Forming groups – MAO-WM-01, MAE-FG-02

• Investigate and form equal groups by sharing
• Record grouping and sharing

Data – MAO-WM-01, MAE-DATA-01

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

## Resource

Category:

• Combining and separating quantities
• Data
• Early Stage 1
• Forming groups
• Mathematics (2022)
• Representing whole numbers
• Unit