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How Big Are Classes 5, 6 and 7?

Age 7 to 11
Challenge Level Yellow star
Primary curriculum
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You can work out the number that each pin-man stands for from the two graphs for Class $4$.


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Graphing Number Patterns

Does a graph of the triangular numbers cross a graph of the six times table? If so, where? Will a graph of the square numbers cross the times table too?

Dining Ducks

Use the information about the ducks on a particular farm to find out which of the statements about them must be true.

You Never Get a Six

Charlie thinks that a six comes up less often than the other numbers on the dice. Have a look at the results of the test his class did to see if he was right.

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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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