Stage 3, mathematics, Year A – Unit 12
This 2-week, Year A unit introduces the big idea that understanding relationships between the properties of 2D shapes helps visualise and organise spaces in the world.
Syllabus
Syllabus outcomes 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 opportunities to:
- explore, describe and classify triangles and quadrilaterals according to their properties
- investigate the symmetry properties (line and rotational) of triangles and quadrilaterals
- establish an understanding of the relationship between the properties of 2-dimensional shapes, area and perimeter.
Multiplicative relations A – MAO-WM-01, MA3-MR-01
- Determine products and factors
- Use partitioning and place value to multiply 2-, 3- and 4-digit numbers by one-digit numbers
- Use estimation and rounding to check the reasonableness of answers to calculations
Multiplicative relations B – MAO-WM-01, MA3-MR-01
Select and apply strategies to solve problems involving multiplication and division with whole numbers
Two-dimensional spatial structure A – MAO-WM-01, MA3-2DS-01, MA3-2DS-02
- 2D shapes: Classify two-dimensional shapes and describe their properties
- Area: Use hectares and square kilometres as units of measurement for area
- Area: Calculate the areas of rectangles using familiar metric units