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.

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

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.