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# Spinners: explore

TLF ID L2380

Test a coloured spinner (dial with pointer) with three equal-sized sectors. Use a tool to build more spinners. Choose up to twelve equal-sized sectors. Choose one of three colours for each part of a spinner. For example, make a three-colour spinner with six red sectors, four yellow sectors and two orange sectors. Test the spinner over a number of spins. See which colour the pointer lands on each time. Watch the graph build after each spin. Compare the actual results with the expected results. Check whether increasing the proportion of a colour on a spinner increases the chances of the spinner landing on that colour.

#### Educational details

Educational value
• Students compare theoretical outcomes and actual results.
• Includes a tool enabling the user to construct area-based random generators in the form of spinners and to run trials to generate both short-run (10 spins) and long-run (10 000) data.
• The spinner tool maximises student choice, control and creativity as they explore the results from making various spinners.
• Experimental results are dynamically displayed in a column graph and a table that shows both theoretical outcomes and actual results.
Year level

2; 3

Learning area
• Mathematics

#### Other details

Contributors
• Contributor
• Name: CSIRO Publishing
• Organization: CSIRO Publishing
• Description: Technical implementer
• Address: VIC, AUSTRALIA
• URL: http://www.publish.csiro.au/
• Name: Education Services Australia
• Organization: Education Services Australia
• Description: Data manager
• Person: Michael Wagner
• Description: Script writer
• Person: Jenni Way
• Description: Subject matter expert
• Person: Graham Jones
• Description: Educational validator
• Name: Education Services Australia
• Organization: Education Services Australia
• URL: www.esa.edu.au
• Publisher
• Name: Education Services Australia
• Organization: Education Services Australia
• Description: Publisher
• Address: VIC, AUSTRALIA
• URL: www.esa.edu.au
• Resource metadata contributed by
• Name: Education Services Australia Ltd
• Organisation: Education Services Australia Ltd