Stage 3, mathematics, Year B – Unit 32

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) © 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 and manipulate polygons to understand the properties of regular and irregular shapes
  • translate, rotate and reflect rectangles and triangles to form compound 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.

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

Category:

  • Mathematics (2022)
  • Multiplicative relations
  • Stage 3
  • Two-dimensional spatial structure
  • Unit

Business Unit:

  • Curriculum and Reform
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