eyfs_activity
Hidden Jewels
In this 'hide and reveal' game, children are encouraged to say the number of gems without counting them.
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article
Sperner's Lemma
An article about the strategy for playing The Triangle Game which appears on the NRICH site. It contains a simple lemma about labelling a grid of equilateral triangles within a triangular frame.
article
Playing With Factors and Multiples
This article for primary teachers outlines why developing an intuitive 'feel' for numbers matters, and how our activities focusing on factors and multiples can help.
article
Thinking About Different Ways of Thinking
This article, the first in a series, discusses mathematical-logical intelligence as described by Howard Gardner.
problem
Favourite
Power Match
16 to 18
Can you locate these values on this interactive logarithmic scale?
article
Euler's Formula
Some simple ideas about graph theory with a discussion of a proof
of Euler's formula relating the numbers of vertces, edges and faces
of a graph.
problem
Favourite
Satisfying Four Statements
7 to 11
Can you find any two-digit numbers that satisfy all of these statements?