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AC9M1M01

Measurement > Early Measurement

Australian Curriculum Version 9 Says:

Compare directly and indirectly and order objects and events using attributes of length, mass, capacity and duration, communicating reasoning.

What this means

Direct measurement means physically comparing two things.
Indirect measurement involves using a go-between to measure.
For example, a piece of string may be used to compare the lengths of two objects.
This is a new concept in Year 1. Foundation only referred to direct measurement.
3+ objects is also new in Year 1.
Communicating reasoning; the student can explain why they have made that choice. For example, during a length activity a student may say; “This one sticks out more so it’s longer.”
Order; Comparative language begins with two objects. One can be long and the other longer. Later, when ordering three or more objects longest may be used.

Tip

Don’t use calibrated (unit labelled) materials at this year level.

Click on image to Enlarge descriptor card.

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Resources & Manipulatives

These Quick Curriculum Guides have been designed to take a look at the Australian Mathematics Curriculum (AC9), explain terminology and provide interpretations.

Narelle and I have used our professional judgement to put forward what is appropriate for students at this year level.

Authors: Dr Paul Swan & Narelle Rice
We would like to also thank Linda Marshall and David Dunstan for comments and assistance.

These documents serve as general advice only and do not take into account your specific needs and conditions. While best care has been taken in compiling these materials, mistakes may exist.
Australian Curriculum version 9 materials used under Creative Commons licence from ACARA. Readers should always refer back to the curriculum itself and the state-based curriculum that is relevant for you.

This document is copyright of A-Z Type (Dr Paul Swan). A copy of this document may be downloaded from www.drpaulswan.com.au.