Mathematics – Stage 1 – Year B – Unit 39

This two-week unit develops student knowledge, understanding and skills with three-dimensional objects, volume and internal volume.

Mathematics K-2 Syllabus © 2022 NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales.

Students are provided opportunities to:

  • recognise that flat surfaces of 3D objects can be named as 2D shapes
  • use mathematical vocabulary to name, describe and compare the features of 2D shapes and 3D objects
  • deconstruct and construct prisms and cubes
  • see how 3D objects can look different depending on the point of view as it is manipulated
  • make and use a calibrated measuring device to measure and compare internal volume
  • measure and compare volume of various 3D objects.

Syllabus focus and content group

Representing whole numbers A – MAO-WM-01, MA1-RWN-01, MA1-RWN-02

  • Represent numbers on a line
  • Represent the structure of groups of ten in whole numbers
  • Use counting sequences of ones with two-digit numbers and beyond

Representing whole numbers B – MAO-WM-01, MA1-RWN-01, MA1-RWN-02

  • Use counting sequences of ones and tens flexibly
  • Form, regroup and rename three-digit numbers

Two-dimensional spatial structure A – MAO-WM-01, MA1-2DS-01, MA1-2DS-02

  • 2D shapes: Recognise and classify shapes using obvious features

Three-dimensional spatial structure A – MAO-WM-01, MA1-3DS-01, MA1-3DS-02

  • 3D shapes: Recognise familiar three-dimensional objects
  • 3D shapes: Sort and describe three-dimensional objects
  • Volume: Measure and compare the internal volumes (capacities) of containers by filling
  • Volume: Measure the internal volume (capacity) of containers by packing
  • Volume: Construct volumes using cubes

Three-dimensional spatial structure B – MAO-WM-01, MA1-3DS-01, MA1-3DS-02

  • 3D objects: Describe the features of three-dimensional objects
  • Volume: Compare containers based on internal volume (capacity) by filling and packing
  • Volume: Compare volumes using uniform informal units

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