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Birdwatch

Age 7 to 11
Challenge Level Yellow star
Primary curriculum
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Every year, the Royal Society for the Protection of Birds (RSPB) asks people to do a survey of the birds seen in their gardens. In 2011, over half a million people took part and you see some of the results the RSPB received in the two tables below:

The first column of both tables shows the names of the birds.  The second column of the left-hand table shows the average numbers of those birds across all the gardens. The second column of the right-hand table shows the percentage of all the gardens in which those birds were identified. 

You may need to have a chat with others to get a clear picture of the meanings of "average per garden' and "percentage of gardens with the bird".

Have a general look at both tables. What can you say about them?

What can you can about the ranking of the starling?

What can you say about the ranking of the robin?

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Class 5's Names

Class 5 were looking at the first letter of each of their names. They created different charts to show this information. Can you work out which member of the class was away on that day?

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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