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This lesson focuses on the probability of spinning grey on five different fair spinners, each divided into equal sectors of grey and white. Students will analyze spinner outcomes and calculate probabilities. In the first part, they identify a spinner where the probability of spinning grey is known. Then, they pick two spinners whose probabilities of landing on grey are more than 60% but less than 70%. Lastly, students will compute the probability of landing on white for each spinner.
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Teacher's Notes Topic: Probability Spinners The diagram shows five fair spinners with grey and white sectors. Each spinner is divided into equal sectors. I am going to spin all the pointers. (a) For one of the spinners, the probability of spinning grey is Which spinner is this? (b) For two of the spinners, the probability of spinning grey is more than 60% but less than 70% Which two spinners are these? 3 4 L5 For each spinner, what is p(white) ?
Spinners The diagram shows five fair spinners with grey and white sectors. Each spinner is divided into equal sectors. I am going to spin all the pointers. (a) For one of the spinners, the probability of spinning grey is Which spinner is this? (b) For two of the spinners, the probability of spinning grey is more than 60% but less than 70% Which two spinners are these? 3 4
