Mathematics – Multi-age – Year B – Unit 5

New shapes can be made by joining (combining) or partitioning (breaking apart) existing shapes – understanding, and skills of working with existing shapes to create new shapes and linear patterns.

Mathematics K-2 Syllabus © 2021 NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales.

In this unit students will learn to:

  • explore how shapes can be made by joining (combining) and breaking apart (partitioning) existing shapes
  • create new shapes by adding or removing sides and vertices (corners)
  • recognise how two-dimensional (2D) shapes can be classified into different categories according to features
  • create linear patterns with shapes that transform (slides and reflections)
  • make designs with symmetry from reflection
  • measure areas using uniform informal units
  • use concrete materials to model dividing a whole length into halves and then subdividing into quarters
  • model sharing and grouping collections of objects to represent division.
Representing whole numbers – MAO-WM-01, MAE-RWN-01, MAE-RWN-02
  • Instantly name the number of objects within small collections
  • Use the counting sequence of ones flexibly
  • Recognise number patterns
  • Connect counting and numerals to quantities
Combining and separating quantities – MAO-WM-01, MAE-CSQ-01, MAE-CSQ-02
  • Model additive relations and compare quantities
  • Identify part-whole relationships in numbers up to 10
Forming groups – MAO-WM-01, MAE-FG-01, MAE-FG-02
  • Record grouping and sharing
Geometric Measure– MAO-WM-01, MAE-GM-02, MAE-GM-03
  • Length – Create half a length
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


Representing whole numbers A – MAO-WM-01, MA1-RWN-01, MA1-RWN-02
  • Use counting sequences of ones with two-digit numbers and beyond
  • Continue and create number patterns
  • Represent the structure of groups of ten in whole numbers
Representing whole numbers B – MAO-WM-01, MA1-RWN-01, MA1-RWN-02
  • Use counting sequences of ones and tens flexibly
Combining and separating quantities – MAO-WM-01, MA1-CSQ-01
  • Use advanced count-by-one strategies to solve addition and subtraction problems
  • Recognise and recall number bonds up to ten
  • Use flexible strategies to solve addition and subtraction problems
Forming groups – MAO-WM-01, MA1-FG-01
  • Recognise and represent division
Geometric Measure– MAO-WM-01, MA1-GM-03
  • Subdivide lengths to find halves and quarters
Two-dimensional spatial structure – MAO-WM-01, MA1-2DS-01, MA1-2DS-02
  • 2D shapes: Recognise and classify shapes using obvious features
  • 2D shapes: Transform shapes with slides and reflections
  • Area: Measure areas using uniform informal units

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