World of Tan 7 - Gat Marn

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2
Children you may like to:
  • complete the silhouette of the 'Gat Marn' plaque as last seen;
  • work out the full cost of the plaque, not including green baize, if the cost of the square was 100 US dollars;
  • design a poss ible replacement - but it must have at least one line of symmetry.
Parents you may like to:
  • make a collection of company logos and discuss the shapes that are contained therein;
  • find what countries share a border with China;
  • find out about the currency used in China and those of the neighbouring countries.

Teachers you may like to:
  • develop the ideas of symmetry a little more deeply. Can tangrams be arranged with 1,2 or more lines of symmetry? Can arrangements have rotational symmetry?
  • consider the role of symmetry in the design of goods and materials.
  • explore some of the phrases in italics used in the story and try to replace with alternatives.
  • consider other words that could be used to describe the emotional conditions that Grandma T and Mr. Cheung found themselves in.

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. More information on many of our other activities can be found here.
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