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Learning objects Scale matters: negatives

TLF ID L2001

Explore the use of scale on a number line. Select a ruler displaying a helpful scale such as ones. Look at a pair of numbers such as -5 and -2 marked on a number line. Identify the number corresponding to another point. Or locate another point on the number line to complete a series of three numbers. Apply a marked scale to help estimate the relative distances. This learning object is one in a series of seven objects. Some objects in the series are also packaged as a combined learning object.

Educational details

Key learning objectives
  • Students locate numbers on a given scale.
  • Students use a scale to measure discrete quantities.
  • Students locate numbers (including negative numbers) accurately on a continuous scale.
  • Students identify how variations in unit size relate proportionally to the number of units that will fit into a given space.
Educational value
  • Uses scales to relate numbers to each other on number lines.
  • Provides a range of scales to help students relate variations in unit size to the number of units that will fit into a given space.
  • Helps students to apply efficient multiplicative or additive strategies.
  • Random generation of points and numbers supports repeated use.
Year level

6; 7

Learning area
  • mathematics
  • Mathematics/Number and algebra
    • Mathematics/Volume
    • Mathematics/Number lines
    • Mathematics/Place value
    • Mathematics/Ratio and proportion
    • Mathematics/Size and shape
    • Mathematics/Scale
    • Mathematics/Computation
    • Analysis;
    • Application;
    • Comprehension;
    • Knowledge
    Student activity
    • Interactives;
    • Experiment;
    • Estimation;
    • Analysis;
    • Modelling
    Learning design
    • Experiential learning;
    • Independent learning;
    • Problem solving;
    • Visual learning

    Other details

    • Script writer
    • Name: Michael Wagner
    • Organisation: Godwin + Wagner
    • Address: Box Hill South VIC Australia
    • Subject matter expert
    • Technical implementer
    • Educational validator
    • Publisher
    • Date of contribution: 20 Sep 2013
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL:
    Access profile
    • Colour independence
    • Device independence
    • Hearing independence
    Learning resource type
    • Interactive Resource
    • Microsoft Internet Explorer - minimum version: 8.0 (MS-Windows) - maximum version: 9.0 (MS-Windows)
    • Firefox - minimum version: (MS-Windows)
    • Safari - minimum version: 5.1 (MacOS)
    Operating systems
    • MacOS - minimum version: 10.6
    • MS-Windows - minimum version: XP - maximum version: 7
    • © Education Services Australia Ltd, 2013, except where indicated under Acknowledgements.