article
Continued fractions I
An article introducing continued fractions with some simple puzzles for the reader.
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article
Winning lines
An article for teachers and pupils that encourages you to look at the mathematical properties of similar games.
project
The golden ratio
11 to 14
Investigation of the golden ratio and the human body which can be done individually or in the classroom.
page
NRICH and Olympiads
A useful entry point into the NRICH site for those students interested in Mathematical Olympiad problems or the Maths Challenges.
problem
Tessellating triangles
7 to 11
Can you make these equilateral triangles fit together to cover the
paper without any gaps between them? Can you tessellate isosceles
triangles?
problem
Königsberg
11 to 14
Can you cross each of the seven bridges that join the north and south of the river to the two islands, once and once only, without retracing your steps?
problem
Favourite
Fractions and percentages card game
11 to 16
Can you find the pairs that represent the same amount of money?
problem
Overlapping squares
7 to 11
Have a good look at these images. Can you describe what is happening? There are plenty more images like this on NRICH's Exploring Squares CD.
