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NSW Curriculum
NSW Education Standards Authority

K–10Mathematics K–10 Syllabus

Record of changes
Implementation for K–2 from 2023 and 3–10 from 2024
Expand for detailed implementation advice

Content

Stage 3

Two-dimensional spatial structure B
2D shapes: Dissect two-dimensional shapes and rearrange them using translations, reflections and rotations
  • Use the terms translate, reflect and rotate to describe transformations of two-dimensional shapes

  • Dissect and rearrange one shape to make another

  • Recognise that translations, reflections or rotations change the position and orientation but not the size of shapes (Reasons about spatial orientation)

Area: Find the area of composite figures
  • Find different ways to calculate the area of a composite L-shape figure

Area: Calculate the area of a parallelogram using subdivision and rearrangement
  • Show how to transform a parallelogram into a rectangle to find its area

  • Record, using words, a method for finding the area of any parallelogram

Area: Determine the area of a triangle
  • Investigate the area of a triangle by comparing it to the area of a parallelogram with the same base length and height

  • Establish the relationship between the area of a triangle and the area of a parallelogram formed by duplicating and rotating the triangle

  • Record, using words, a method for finding the area of any triangle

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