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Learning objects The number partner: go figure

TLF ID L105

This tutorial is suitable for use with a screen reader. It explains strategies for breaking up numbers into pairs of smaller numbers, eg 15 = 11 + 4. Work through examples of whole number pairs and sample questions. Apply these principles to solve additions or subtractions.



Educational details

Key learning objectives
  • Students investigate breaking up numbers between 10 and 30 into pairs of smaller numbers.
  • Students apply their knowledge of partitioning numbers to calculating sums mentally.
Educational value
  • Provides explanations for how to find component pairs for two-digit numbers less than 30.
  • Includes a tutorial that explains why it is easier to count on from the larger number of a number pair.
  • Can be used with a screen reader.
Year level

3

Learning area
  • mathematics
Strand
  • Mathematics/Number and algebra
    Concept
    • Mathematics/Whole numbers
    • Mathematics/Mental arithmetic
    • Mathematics/Counting strategies
    • Mathematics/Addition
    • Mathematics/Subtraction
    • Mathematics/Number patterns
    • Mathematics/Number relationships
    Skill
    • Analysis;
    • Application;
    • Comprehension;
    • Knowledge
    Student activity
    • Interactives;
    • Analysis;
    • Experiment;
    • Modelling
    Learning design
    • Independent learning;
    • Experiential learning;
    • Problem solving;
    • Visual learning

    Other details

    Contributors
    • Technical implementer
    • Subject matter expert
    • Publisher
    • Date of contribution: 20 Sep 2013
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL: http://www.esa.edu.au/
    Access profile
    • Device independence
    • Hearing independence
    • Visual independence
    Learning resource type
    • Interactive Resource
    Browsers
    • 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
    Rights
    • © Education Services Australia Ltd, 2013, except where indicated under Acknowledgements.