Visualising and representing

There are 544 NRICH Mathematical resources connected to Visualising and representing
Product and Sum
problem

Product and Sum

Age
11 to 14
Challenge level
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When Jim rolled some dice, the scores had the same product and sum. How many dice did Jim roll?
Pyramidal n-gon
problem

Pyramidal n-gon

Age
14 to 16
Challenge level
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The base of a pyramid has n edges. What is the difference between the number of edges the pyramid has and the number of faces the pyramid has?
Reflected Back
problem

Reflected Back

Age
11 to 14
Challenge level
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Imagine reflecting the letter P in all three sides of a triangle in turn. What is the final result?
In or Out?
problem

In or Out?

Age
14 to 16
Challenge level
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Weekly Problem 52 - 2014
Four arcs are drawn in a circle to create a shaded area. What fraction of the area of the circle is shaded?
Fifty Coins
problem

Fifty Coins

Age
11 to 14
Challenge level
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Cheryl finds a bag of coins. Can you work out how many more 5p coins than 2p coins are in the bag?
Relative Time
problem

Relative Time

Age
14 to 16
Challenge level
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Albert Einstein is experimenting with two unusual clocks. At what time do they next agree?
Painted Octahedron
problem

Painted Octahedron

Age
11 to 14
Challenge level
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What is the smallest number of colours needed to paint the faces of a regular octahedron so that no adjacent faces are the same colour?
Upper Primary Recording
list

Upper Primary Recording

Age
7 to 11
These activities give you the chance to be creative in the way you record your thinking. Anything goes!