Multi-age 3–6, mathematics, Year A – Unit 02

This unit introduces the big idea that addition and subtraction problems can be solved by using a variety of strategies.

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.

Students are provided with opportunities to:

apply place value to partition and regroup numbers for addition and subtraction problem-solving
explore the connection between additive relations and place value
recognise and explain the connection between addition and subtraction
select and explain efficient flexible strategies when solving problems.

Syllabus focus and content groups

Stage 2

Representing numbers using place value A – MAO-WM-01, MA2-RN-01

Whole numbers: Read, represent and order numbers to thousands
Whole numbers: Apply place value to partition and regroup numbers up to 4 digits

Representing numbers using place value B – MAO-WM-01, MA2-RN-01

Whole numbers: Apply place value to partition, regroup and rename numbers up to 6 digits

Additive relations A – MAO-WM-01, MA2-AR-01, MA2-AR-02

Use the principle of equality
Recognise and explain the connection between addition and subtraction
Select strategies flexibly to solve addition and subtraction problems of up to 3 digits

Additive relations B – MAO-WM-01, MA2-AR-01, MA2-AR-02

Partition, rearrange and regroup numbers to at least 1000 to solve additive problems

Partitioned fractions A – MAO-WM-01, MA2-PF-01

Model and represent unit fractions, and their multiples, to a complete whole on a number line

Stage 3

Represents numbers A – MAO-WM-01, MA3-RN-01

Whole numbers: Recognise, represent and order numbers in the millions
Whole numbers: Apply place value to partition, regroup and rename numbers to 1 billion

Additive relations A – MAO-WM-01, MA3-AR-01

Apply efficient mental and written strategies to solve addition and subtraction problems
Use estimation and place value understanding to determine the reasonableness of solutions

Additive relations B – MAO-WM-01, MA3-AR-01

Choose and use efficient strategies to solve addition and subtraction problems

Resource

Mathematics 3–6 multi-age – Year A – Unit 2 (DOCX 4759 KB)

Mathematics 3–6 units

Sample units to support implementation in Years 3–6 of the Mathematics K–10 Syllabus.

Multi-age 3–6, mathematics, Year A – Unit 03

Stage 2 and 3 – introduce students to the big idea that what needs to be measured determines the unit of measurement in this sample unit.

Category:

3-6
Additive relations
Partitioned fractions
Representing numbers using place value
Represents numbers
Stage 2
Stage 3

Business Unit:

Curriculum and Reform