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Prompt Cards
These two group activities use mathematical reasoning - one is numerical, one geometric.
Consecutive Numbers
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
Exploring Wild & Wonderful Number Patterns
EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.
Age 7 to 11
Challenge Level
Found in the playground of a Danish school - something to sit on!
Look carefully at the numbers.
What do you notice?
Can you make another square using the numbers $1$ to $16$, that displays the same properties?
Find out what Albrecht Dürer has to do with this arrangement of numbers.
There are twelve different types of $4$ by $4$ magic square that use the numbers $1$ to $16$. See if you can find information about these twelve types and show examples of each one.
Look carefully in each case at the patterns produced when a total of $17$ is searched for.
Can you finish off the $5$ by $5$ magic square below?
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$23$
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$6$
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$19$
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$2$
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$15$
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$10$
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$1$
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$5$
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$9$
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$4$
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$12$
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$8$
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$11$
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$7$
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$3$
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NRICH is part of the family of activities in the Millennium Mathematics Project.