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

Develop students understanding of the big idea that addition and subtraction problems can be solved by using a variety of strategies in this sample unit.

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 understanding to solve addition and subtraction problems
identify 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

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
Whole numbers: Recognise and represent numbers that are 10, 100 or 1000 times as large

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

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

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

Stage 3

Represents numbers A – MAO-WM-01, MA3-RN-01, MA3-RN-02

Whole numbers: Recognise, represent and order numbers in the millions
Whole numbers: Apply place value to partition, regroup and rename numbers to 1 billion
Decimals and percentages: Recognise that the place value system can be extended beyond hundredths
Decimals and percentages: Compare order and represent decimals

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
Applies known strategies to add and subtract decimals

Resource

Mathematics 3–6 multi-age – Year B – Unit 2 (DOCX 4984 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 B – Unit 03

This unit develops the big idea that what needs to be measured determines the unit of measurement.

Category:

3-6
Additive relations
Mathematics (2022)
Represents numbers
Represents numbers using place value
Unit

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Curriculum and Reform