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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 4

Properties of geometrical figures
Classify triangles according to their side and angle properties
  • Label triangles using appropriate text and symbols

  • Classify and describe types of triangles based on their properties, including acute-angled, right-angled, obtuse-angled, equilateral, isosceles and scalene triangles

Classify quadrilaterals and describe their properties
  • Identify quadrilaterals using naming conventions

  • Distinguish between convex and non-convex quadrilaterals

  • Verify and describe the properties of the special quadrilaterals which include parallelograms, rectangles, rhombuses, squares, trapeziums and kites

  • Identify and label the properties of the special quadrilaterals using appropriate conventions

  • Classify quadrilaterals based on their properties

  • Justify why some quadrilaterals may be classified as more than one type of quadrilateral

Apply the properties of triangles and quadrilaterals
  • Prove that any exterior angle of a triangle equals the sum of the 2 interior opposite angles

  • Apply the properties of triangles and quadrilaterals to determine unknown sides and angles to solve problems, giving reasons

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