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# Interactive Spinners

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Age 11 to 14

Challenge Level

*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?