1. Change the number of dogs and bones as appropriate. Ensure that there will not always be equal sharing.
2. Encourage pupils to apply logic, for example, if three, three, three, two and one are 12, then three, three, three, one and one are 11 because I took one away from the two. 11 is one less than 12.
3. Encourage pupils to check if there is another way to distribute the bones. Have you found all possible ways? How do you know?
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