Multi-age 3–6, mathematics, Year B – Unit 12
This 2-week, Year B unit develops 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)External link © 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:
- combine and split common shapes to create other common two-dimensional shapes
- transform two-dimensional and composite figures by reflecting, translating, and rotating
- measure and compare the areas of shapes using the grid structure and familiar metric units of area
- explore and manipulate polygons to understand the properties of regular and irregular shapes
- examine the relationship between the area of a parallelogram and the area of a triangle
- apply their knowledge of 2D space to calculate the area of composite shapes.
Syllabus focus and content groups
Multiplicative relations A – MAO-WM-01, MA2-MR-01
Represent and solve problems involving multiplication fact families
Multiplicative relations B – MAO-WM-01, MA2-MR-01, MA2-MR-02
- Use the structure of the area model to represent multiplication and division
- Use number properties to find related multiplication facts
- Operate with multiples of 10
- Represent and solve word problems with number sentences involving multiplication or division
Two-dimensional spatial structure A – MAO-WM-01, MA2-2DS-02
2D shapes: Transform shapes by reflecting, translating and rotating
Two-dimensional spatial structure B – MAO-WM-01, MA2-2DS-01, MA2-2DS-02, MA2-2DS-03
- 2D shapes: Create two-dimensional shapes that result from combining and splitting common shapes
- 2D shapes: Create symmetrical patterns and shapes
- Area: Measure the areas of shapes using the grid structure
- Area: Compare surfaces using familiar metric units of area
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
2D shapes: Classify two-dimensional shapes and describe their properties
Two-dimensional spatial structure B – MAO-WM-01, MA3-2DS-01, MA3-2DS-02, MA3-2DS-03
- 2D shapes: Dissect two-dimensional shapes and rearrange them using translations, reflections and rotations
- Area: Find the area of composite figures
- Area: Calculate the area of a parallelogram using subdivision and rearrangement
- Area: Determine the area of a triangle