Early Stage 1, mathematics – Unit 19

Develop students' skills with 2D shapes, 3D objects, volume, and internal volume (capacity) in this two-week unit.


Syllabus outcomes and content descriptors 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.

In this unit – 'Objects can be sorted and classified in different ways', students are provided opportunities to:

  • name, describe and represent 2D shapes
  • explore familiar 3D objects by sorting, stacking, describing, and making representations
  • recognise that flat surfaces of 3D objects can be named as 2D shapes
  • measure and compare volume of various 3D objects
  • measure and compare internal volume (capacity) of various 3D objects.

Representing whole numbers – MAO-WM-01, MAE-RWN-01, MAE-RWN-02

  • Instantly name the number of objects within small collections
  • Recognise number patterns

Two-dimensional spatial structure – MAO-WM-01, MAE-2DS-01, MAE-2DS-02

  • 2D shapes: Sort, describe and name familiar shapes
  • 2D shapes: Represent shapes

Three-dimensional spatial structure – MAO-WM-01, MAE-3DS-01, MAE-3DS-02

  • 3D objects: Explore familiar three-dimensional objects
  • Volume: Compare internal volume by filling and packing
  • Volume: Compare volume by building


  • Early Stage 1
  • Mathematics (2022)
  • Representing whole numbers
  • Three-dimensional spatial structure
  • Two-dimensional spatial structure
  • Unit

Business Unit:

  • Curriculum and Reform
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