Multi-age K–2, mathematics, Year B – Unit 09
This unit develops understanding and skills of forming groups and combining and separating.
Syllabus
Syllabus outcomes and content descriptors from the 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 students will learn to:
- choose and evaluate strategies to combine, separate, and form groups
- use concrete materials, drawings, words, numerals and/or symbols to describe and explain mathematical operations
- understand that the order in which 2 quantities are combined does not change the result
- explore the inverse relation between addition and subtraction (Stage 1)
- apply knowledge of related facts (number combinations to 10 and/or 20)
- use repeated addition to solve multiplication problems.
Syllabus focus and content groups
Representing whole numbers – MAO-WM-01, MAE-RWN-01, MAE-RWN-02
- Instantly name the number of objects within small collections
- Use the counting sequence of ones flexibly
- Recognise number patterns
- 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-01, MAE-FG-02
- Copy, continue and create patterns
- Investigate and form equal groups by sharing
- Record grouping and sharing
Data – MAO-WM-01, MAE-DATA-01
Organise objects into simple data displays and interpret the displays
Representing whole numbers – MAO-WM-01, MA1-RWN-01, MA1-RWN-02
- Part A – Use counting sequences of ones with two-digit numbers and beyond
- Part A – Continue and create number patterns
- Part A – Represent numbers on a line
- Part A – Represent the structure of groups of ten in whole numbers
- Part B – Use counting sequences of ones and tens flexibly
- Part B – Form, regroup, and rename three-digit numbers
Combining and separating quantities – MAO-WM-01, MA1-CSQ-01, MA1-CSQ-02
- Part A – Use advanced count-by-one strategies to solve addition and subtraction problems
- Part A – Recognise and recall number bonds up to ten
- Part A – Use flexible strategies to solve addition and subtraction problems
- Part A – Represent equality
- Part B – Represent and reason about additive relations
- Part B – Form multiples of ten when adding and subtracting two-digit numbers
- Part B – Use knowledge of equality to solve related problems
Forming groups – MAO-WM-01, MA1-FG-01
- Part A – Count in multiples using rhythmic and skip counting
- Part A – Use skip counting patterns
- Part A – Model and use equal groups of objects to represent multiplication
- Part A – Recognise and represent division
- Part B – Represent and explain multiplication as the combining of equal groups
- Part B – Model doubling and halving with fractions
- Part B – Represent multiplication and division problems
Data – MAO-WM-01, MA1-DATA-01, MA1-DATA-02
- Part A – Ask questions and gather data
- Part A – Represent data with objects and drawings and describe the displays