Stage 3, mathematics, Year A – Unit 15
This 2-week, Year A unit develops the big idea that addition and subtraction problems can be solved using a variety of strategies.
In this 2-week unit, students are provided opportunities to:
- apply known strategies to add and subtract large numbers and decimals
- solve multistep word problems, including problems that require more than one operation
- make use of benchmark percentages to determine discounts.
Represents numbers – 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
Represents numbers B – MAO-WM-01, MA3-RN-01, MA3-RN-02
- 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
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
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.