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For younger learners

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Sharing Incomplete Solutions

There are a number of different ways in which you, as the teacher, might use NRICH solutions as part of the lesson itself and these are outlined in our Celebrating Solutions Feature.  

The tasks below have some published solutions which are not completely correct.  Challenge your learners to find what is not quite right in each one and to explain why, or how they know.

Inside Triangles

Age 5 to 7
Challenge Level Yellow star

How many different triangles can you draw on the dotty grid which each have one dot in the middle?

School Fair Necklaces

Age 5 to 11
Challenge Level Yellow starYellow star

How many possible symmetrical necklaces can you find? How do you know you've found them all?

Reflecting Squarely

Age 11 to 14
Challenge Level Yellow star

In how many ways can you fit all three pieces together to make shapes with line symmetry?

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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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