Describing patterns and sequences

There are 125 NRICH Mathematical resources connected to Describing patterns and sequences
Train Spotters' Paradise
article

Train Spotters' Paradise

Dave Hewitt suggests that there might be more to mathematics than looking at numerical results, finding patterns and generalising.
Magic Letters
problem

Magic Letters

Age
11 to 14
Challenge level
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Charlie has made a Magic V. Can you use his example to make some more? And how about Magic Ls, Ns and Ws?
Steps to the Podium
problem

Steps to the Podium

Age
7 to 14
Challenge level
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It starts quite simple but great opportunities for number discoveries and patterns!
polygonals
problem

polygonals

Age
7 to 11
Challenge level
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Polygonal numbers are those that are arranged in shapes as they enlarge. Explore the polygonal numbers drawn here.
Summing Consecutive Numbers
problem

Summing Consecutive Numbers

Age
11 to 14
Challenge level
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15 = 7 + 8 and 10 = 1 + 2 + 3 + 4. Can you say which numbers can be expressed as the sum of two or more consecutive integers?
Poly Plug Pattern
problem

Poly Plug Pattern

Age
5 to 7
Challenge level
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Create a pattern on the small grid. How could you extend your pattern on the larger grid?
Attractive Tablecloths
problem

Attractive Tablecloths

Age
14 to 16
Challenge level
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Charlie likes tablecloths that use as many colours as possible, but insists that his tablecloths have some symmetry. Can you work out how many colours he needs for different tablecloth designs?
Odds, Evens and More Evens
problem

Odds, Evens and More Evens

Age
11 to 14
Challenge level
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Alison, Bernard and Charlie have been exploring sequences of odd and even numbers, which raise some intriguing questions...
Seven Squares
problem

Seven Squares

Age
11 to 14
Challenge level
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Watch these videos to see how Phoebe, Alice and Luke chose to draw 7 squares. How would they draw 100?
What numbers can we make?
problem

What numbers can we make?

Age
11 to 14
Challenge level
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Imagine we have four bags containing a large number of 1s, 4s, 7s and 10s. What numbers can we make?