In this lesson, students have to find the possible total scores when spinning two different spinners.
Spinners are quick and easy to create in the classroom, and students can experiment to test out their conjectures. Constructing a sample space diagram allows students to predict and explain the outcomes and calculate theoretical probabilities.
Why teach this?
Many real-world situations involve probability, but students’ intuitions can often be wrong.
Key curriculum links
Generate theoretical sample spaces for single and combined events with equally likely, mutually exclusive outcomes and use these to calculate theoretical probabilities.
Key question
How can we predict the probabilities of the outcomes from two spinners?
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KS3 Maths Lesson Plan – Teach Probability by Considering the Outcomes of a Simple Spinner Game
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