Check out the \"eManipulative\" on spinners and probability linked here: Spinner

Question

Check out the "eManipulative" on spinners and probability linked here:  Spinner eManipulative (this is under the MML Multimedia link, search under chapter 9 if the link above doesn't work). Here is the link: https://media.pearsoncmg.com/aw/aw_mml_shared_1/met_manipulatives/spinner_stats/spinner_stats.html

Discuss how you might use this in a probability lesson. What are some questions you might ask? Do you think it would work as an activity for students, or is it best used for demonstration only? How effective do you think it is in getting across the concepts of probability (e.g., could you use it to demonstrate the idea of "complementary probabilities"?

Explanation / Answer

1) We can use this in a probability lesson by considering the outcome of the spin to be a random variable {1,2,3,.. 12} as sample space.

and a Probability mass function(pmf) can be constructed on it.

Questions that can be asked is about the pmf for the above random variable

it would work as an activity for students if we are given pmf of the above random variable, they can calculate probabilities for different events. for eg what is the probability of even number coming ?

It can be used in complementary probabilities. For example A is an event where 1 is the outcome of the spin

then P(A compliment ) = P(X=2,3,4...12)

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