Stage 3, 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:
- recognise that negative whole numbers can result from subtraction
- make connections between benchmark fractions, decimals and percentages
- select and apply appropriate strategies to solve addition, subtraction, multiplication and division problems.
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