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For younger learners

  • Early Years Foundation Stage

Interactive Spinners

Age 11 to 14
Challenge Level Yellow star


Interactive Spinners printable sheet
 




We have two spinners each numbered $1$ to $4$.
We're going to spin them both and add the numbers.
What possible totals might you get?
What is the least likely/most likely total to occur?
Can you summarise your ideas clearly? Can you justify them?

Use the interactivity to test these hypotheses.

Now make a new set of spinners, and write down a hypothesis about the possible outcomes and the shape of the relative frequency bar chart. Justify your ideas to a friend, before testing them with the interactivity.

Once you have experimented with the interactivity you might like to try this problem: Which Spinners?


 

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Odds and Evens

Are these games fair? How can you tell?

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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