Being collaborative

There are 308 NRICH Mathematical resources connected to Being collaborative
Birdwatch
problem
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Birdwatch

Age
7 to 11
Challenge level
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Have a look at this data from the RSPB 2011 Birdwatch. What can you say about the data?

Which list is which?
problem
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Which list is which?

Age
14 to 16
Challenge level
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Six samples were taken from two distributions but they got muddled up. Can you work out which list is which?
Data shapes
problem
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Data shapes

Age
5 to 7
Challenge level
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Sara and Will were sorting some pictures of shapes on cards. "I'll collect the circles," said Sara. "I'll take the red ones," answered Will. Can you see any cards they would both want?

If the World Were a Village
problem
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If the world were a village

Age
5 to 11
Challenge level
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This activity is based on data in the book 'If the World Were a Village'. How will you represent your chosen data for maximum effect?

Fifteen cards
problem
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Fifteen cards

Age
7 to 11
Challenge level
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Can you use the information to find out which cards I have used?
Finding 3D Stacks
problem
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Finding 3d stacks

Age
7 to 11
Challenge level
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Can you find a way of counting the spheres in these arrangements?

Summing Consecutive Numbers
problem
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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
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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?

All Change
problem
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All change

Age
5 to 7
Challenge level
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There are three versions of this challenge. The idea is to change the colour of all the spots on the grid. Can you do it in fewer throws of the dice?
Who's the best?
problem
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Who's the best?

Age
11 to 14
Challenge level
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Which countries have the most naturally athletic populations?