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Finding symmetry: two lines: city

Learning objects Finding symmetry: two lines: city

TLF ID L7802

Explore a futuristic city to find shapes with two lines of symmetry. Look for shapes that are hidden in objects, for example an oval, a rectangle and a rhombus. Use the testing wand to fold the shapes into matching halves. Check your prediction. Find and test more hidden shapes. This learning object is one in a series of six objects.

Tags: Symmetry
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Educational details

Key learning objectives
  • Students distinguish between symmetrical and non-symmetrical 2D shapes.
  • Students test a shape for reflectional symmetry by folding it into a matching half.
  • Students analyse shapes with two axes of symmetry.
Educational value
  • Demonstrates that a variety of 2D shapes have two lines of symmetry.
  • Provides opportunities for students to test axes of symmetry using a shape-folding tool.
  • Allows students to explore 2D shapes to develop an understanding of symmetry by folding them into matching halves in one or more different ways.
Year level

3

TopicsReflection (Geometry); Shapes (Geometry); Symmetry
Learning area
  • mathematics
Strand
  • Mathematics/Measurement and geometry
    Student activity
    • Interactives;
    • Experiment;
    • Analysis;
    • Modelling
    Learning design
    • Experiential learning;
    • Independent learning;
    • Problem solving;
    • Visual learning

    Other details

    Contributors
    • Script writer
    • Subject matter expert
    • Name: Jenni Way
    • Address: Springwood NSW 2777 Australia
    • Educational validator
    • Name: Lynda Mathews
    • Address: Mount Barker SA 5251 Australia
    • Technical implementer
    • Publisher
    • Date of contribution: 20 Sep 2013
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL: http://www.esa.edu.au/
    Access profile
    • Colour independence
    • Device independence
    • Hearing independence
    • Generic
    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
    Platform requirements
    • Due to the use of rich media content, this learning object is suitable for a connection speed of 256kb/s or faster.
    Rights
    • © Education Services Australia Ltd, 2013, except where indicated under Acknowledgements.