Learning objects The vile vendor: best guess


Use a vending machine to get a vile-flavoured drink such as cabbage, smelly sock or rusty nail. The machine serves a can of drink randomly from four slots. Guess which drink flavour is most likely to be served. Make several guesses and then check your results from the random sample. Work out the likelihood of an event in fraction terms, eg four correct guesses out of seven turns = 4/7. Next, move on to explore the language of likelihood in the activity called 'The vile vendor: questions'. This learning object is one in a series of three learning objects.

Educational details

Key learning objectives
  • Students match probability situations with everyday chance words.
  • Students explore the tension between theoretical probability and randomness.
Educational value
  • Illustrates that the most likely outcome and a random selection may differ.
  • Provides immediate feedback relating the student choice to the random selection made by the vending machine.
  • Provides a results summary screen that relates the language of chance to its corresponding fraction format.
Year level

3; 4; 5

Learning area
  • mathematics
  • Mathematics/Statistics and probability
    • Mathematics/Estimating (Mathematics)
    • Mathematics/Impossible outcomes
    • Mathematics/Likelihood
    • Mathematics/Random events
    • Mathematics/Sampling
    • Mathematics/Mathematical language
    • Mathematics/Odds
    • Mathematics/Probability
    • Mathematics/Fractions
    • Mathematics/Certain outcomes
    • Analysis;
    • Application;
    • Comprehension;
    • Knowledge
    Student activity
    • Interactives;
    • Analysis;
    • Experiment;
    • Modelling
    Learning design
    • Independent learning;
    • Experiential learning;
    • Problem solving;
    • Visual learning

    Other details

    • Technical implementer
    • Subject matter expert
    • Publisher
    • Date of contribution: 20 Sep 2013
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL: http://www.esa.edu.au/
    Access profile
    • Device independence
    • Hearing independence
    Learning resource type
    • Interactive Resource
    • 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
    • © Education Services Australia Ltd, 2013, except where indicated under Acknowledgements.