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Treasure Island

Age 7 to 11
Challenge Level Yellow star
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We had lots of solutions for this question. Catherine and Zoe from Vernon Junior School, Poynton, Cheshire said:

We solved this problem by finding the co-ordinates first, which are as follows:

  • elephant
  • island
  • gate
  • hill
  • tree
  • tower
  • wall
  • octopus

All the letters spell eight two which are the co-ordinates of the buried treasure.

The Lighthouse!

Sam and Ryan from Middlewich Primary School also explained their thinking clearly:

  • (7,5) Elephant
  • (9,5) Island
  • (5,3) Gate
  • (2,3) Hill
  • (7,1) Tree
  • (3,3) Turrent
  • (4,2) wall
  • (1,1) Octopus

We got the first letters from each word and our solution is EIGHT TWO. (8,2), the lighthouse where the treasure is buried.

Thanks for solutions to Andy, Craig from Vernon Junior School and Ashley, Lewis, Adam, Gemma, Jodie, Emily, Sophie, Rachel, Leah and Maria from Middlewich Primary School, Cheshire. Thank you Yifan from Glasgow and Claire, as well.


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Transformation Tease

What are the coordinates of this shape after it has been transformed in the ways described? Compare these with the original coordinates. What do you notice about the numbers?

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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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