Mathematics – Stage 1 – Year A – Unit 3

What needs to be measured determines the unit of measurement – this unit introduces students to measurement using uniform informal units.

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:

  • compare, order and match using informal units of measure
  • estimate whether a measurement is reasonable
  • consider how the selection of measuring unit affects accuracy
  • explore conservation of length, area, volume, and mass.

Syllabus focus and content group

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 numbers on a line
  • 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
  • Form, regroup, and rename three-digit numbers
Geometric measure A – MAO-WM-01, MA1-GM-02
  • Length: Measure the lengths of objects using uniform informal units
  • Length: Compare lengths using uniform informal units
Geometric measure B – MAO-WM-01, MA1-GM-02
  • Length: Compare and order lengths, using appropriate uniform informal units
  • Length: Compare lengths using uniform informal units
Two-dimensional spatial structure A– MAO-WM-01, MA1-2DS-01, MA1-2DS-02
  • 2D shapes: Recognise and classify shapes using obvious features
  • Area: Indirectly compare area
  • Area: Measure areas using uniform informal units
Two-dimensional spatial structure B– MAO-WM-01, MA1-2DS-01, MA1-2DS-02
  • Area: Compare rectangular areas using uniform square units of an appropriate size in rows and columns
Three-dimensional spatial structure A– MAO-WM-01, MA1-3DS-02
  • Volume: Measure and compare the internal volumes (capacities) of containers by filling
  • Volume: Measure the internal volume (capacity) of containers by packing
Three-dimensional spatial structure B– MAO-WM-01, MA1-3DS-02
  • Volume: Compare containers based on internal volume (capacity) by filling and packing
Non-spatial measure A – MAO-WM-01, MA1-NSM-01
  • Mass: Investigate mass using an equal-arm balance
Data A– MA1-WM-01, MA1-DATA-02
  • Represent data with objects and drawings and describe the displays

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