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Learning objects What's in a cube: level 2


Watch a demonstration of the size of a cubic metre (100cm x 100cm x 100cm). See how small a cubic centimetre looks when compared with a cubic metre. Estimate the volume of irregular cuboid objects such as a small kennel, toy train, and backpack. Rotate a 3D grid to help you work out dimensions in centimetres. Estimate the relative volume of the different items. First, estimate the regular part of the shape. Then, estimate the irregular parts and add up the total number of cubic centimetres that make up the item. Use a 3D animation of each estimate to improve your answer. This learning object is one in a series of five objects.

Educational details

Key learning objectives
  • Students use the strategy of guess, check and improve to estimate the volume of irregular everyday objects.
Educational value
  • This resource is useful for the Australian Curriculum content description in 7 about calculating volumes of rectangular prisms.
  • It may also be relevant in supporting students in year 8 to use formulas to solve problems involving volume.
Year level

7; 8

Learning area
  • mathematics
  • Mathematics/Measurement and geometry
    • Mathematics/Volume (Measurement)
    • Mathematics/Estimating (Mathematics)
    • Mathematics/Formulas
    • Mathematics/Size and shape
    • Mathematics/Volume
    • Mathematics/Addition
    • Mathematics/Mensuration
    • Mathematics/Polyhedra
    • Mathematics/Multiplication
    • Mathematics/Prisms
    • Analysis;
    • Application;
    • Comprehension;
    • Knowledge
    Student activity
    • Interactives;
    • Analysis;
    • Experiment;
    • Modelling
    Learning design
    • Independent learning;
    • Experiential learning;
    • Problem solving;
    • Visual learning

    Other details

    • Technical implementer
    • Subject matter expert
    • Publisher
    • Date of contribution: 27 May 2014
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL:
    Access profile
    • Colour independence
    • Device independence
    • Hearing independence
    • Generic
    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.