Sorting activities promote children's skills in observation, reasoning and language.
Sorting is the notion of creating a 'set' which is a well defined collection of objects that belong together because they have a common property.
The crucial idea at the heart of sorting activities is, the idea of 'the same' and 'different'.
In the foundation stage, we have many random collections of objects that the children enjoying sorting. The common properties for sorting are sorting for colour, sorting for size and sorting for shape.