Abstract
The study reported here attempted to discover by employing different geographical techniques at which stages certain abilities‐‐generalization and comparability‐‐develop in children. Eighty children aged between 8 and 14 were tested in several ways using maps, pictures and photographs to see if they could (a) generalize from a distribution and (b) compare two separate distributions. In both cases tests revealed an association of performance with age: by the end of the primary school about 50 per cent of the children could perceive a relationship between two generalized distributions, and the test to compare two separate distributions, above ‘O’ level standard, was well executed by 25 per cent of the 10‐year‐olds.

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