Math K-7 IRP Statistics and Probability (Chance and Uncertainty)

Students use experimental or theoretical probability to represent and solve problems involving uncertainty.


Prescribed Learning Outcomes Illustrated Examples
It is expected that students will:
  • list all possible outcomes of an event

  • explain events using the vocabulary of probability
    • best/worst
    • probable/improbable
    • never/less likely/equally likely
    • likely/more likely/always
    		• -> Use one or both spinners shown to make up a true statement. Use these words:
    • never
    • less likely
    • more likely
    • always


  • conduct probability experiments and explain the results using the vocabulary of probability

  • conduct probability experiments to demonstrate that results are not influenced by factors such as the age, experience, or skill of the participant
    		• -> Yvon tossed 20 tacks. Of these, 13 tacks landed on their points. He uses the fraction thirteen over twenty to describe the probability of tossing "points."



    Yvon says he can now predict 39 "points" if he tosses 60 tacks. Explain his reasoning. Conduct an experiment to test Yvon's prediction. Compare your results with his prediction.

    Start a new experiment. Toss the tacks to establish the probability of landing "tops." Use your fraction to predict tossing "tops" and conduct an experiment to check your prediction. Compare your results with your expectations. If you continue to conduct experiments with tacks, will you improve your ability to toss exactly the number you predict? Why?
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