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Learning objects Trig radians: cosine tool

TLF ID L9120

Use a unit circle tool to explore cosine values in different quadrants. Determine the values of cosine for angles between 0 and 2π radians. Observe how the graph represents the values. This learning object is one in a series of seven objects. Three objects in the series are also packaged as a combined learning object.



Educational details

Key learning objectives
  • Students explore the unit circle definition of the trigonometric function for cosine.
  • Students observe the graph of cosine (from 0 to 2π radians).
Educational value
  • Enables students to appreciate the key features of the values and graph of cosine (from 0 to 2π radians).
  • Provides an interactive unit circle tool to ensure students work with general definitions of the cosine function.
Year level

11; 12

Learning area
  • mathematics
Strand
  • Mathematics/Algebra
  • Mathematics/Measurement
Student activity
  • Interactives;
  • Experiment;
  • Analysis;
  • Modelling;
  • Data manipulation and interpretation

Other details

Contributors
  • Script writer
  • Name: Ron Barassi
  • Address: Melbourne VIC 3000 Australia
  • Educational validator
  • Name: Paul White
  • Address: Strathfield NSW 2135 Australia
  • Subject matter expert
  • Name: Ron Barassi
  • Address: Melbourne VIC 3000 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
  • Hearing 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
Platform requirements
  • Due to the use of rich media content, this learning object is suitable for a connection speed of 256 kbit/s or faster.
Rights
  • © Education Services Australia Ltd, 2013, except where indicated under Acknowledgements.