Multi-age 3–6, mathematics, Year A – Unit 20
This unit develops the big idea that our number system extends infinitely to very large and very small numbers.
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 2-week unit, students are provided opportunities to:
- represent and partition numbers using place value (Stage 2)
- recognise that negative whole numbers can result from subtraction (Stage 3)
- make connections between benchmark fractions, decimals and percentages (Stage 3)
- create a simple map and mark locations
- select strategies to efficiently solve problems in addition, subtraction, multiplication and division.
Syllabus outcomes and content groups
Representing numbers using place value A – MAO-WM-01, MA2-RN-01
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: 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
- Represent money values in multiple ways
Additive relations B – MAO-WM-01, MA2-AR-01
Partition, rearrange and regroup numbers to at least 1000 to solve additive problems
Mulitplicative relations A – MAO-WM-01, MA2-MR-01, MA2-MR-02
Recall multiplication facts of 2 and 4, 5 and 10 and related division facts
Mulitplicative relations B – MAO-WM-01, MA2-MR-01, MA2-MR-02
Use number properties to find related multiplication facts
Geometric measure A – MAO-WM-01, MA2-GM-01
Position: Locate positions on grid maps
Geometric measure B – MAO-WM-01, MA2-GM-01
Position: Create and interpret grid maps
Represents numbers A – MAO-WM-01, MA3-RN-01, MA3-RN-02
Decimals and percentages: Compare, order and represent decimals
Represents numbers B – MAO-WM-01, MA3-RN-01, MA3-RN-02, MA3-RN-03
- Whole numbers: Locate and represent integers on a number line
- Decimals and percentages: Make connections between benchmark fractions, decimals and percentages
- Decimals and percentages: Determine percentage discounts of 10%, 25% and 50%
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
Multiplicative relations A – MAO-WM-01, MA3-MR-01
Select and apply mental and written strategies to multiply 2- and 3-digit numbers by 2-digit numbers
Multiplicative relations B – MAO-WM-01, MA3-MR-01
Use equivalent number sentences involving multiplication and division to find unknown quantities
Geometric measure A – MAO-WM-01, MA3-GM-01
Position: Explore the Cartesian coordinate system