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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.