When children help to serve food they are learning about fractions and division. They are learning that a whole object can be divided into different parts. They are also learning about space and perimeter.
'What shape dish do we need to serve the food in? Is the food solid or liquid so will it stay in the middle of the dish or ooze out to the edge?'
As children start to think about these mathematical concepts they are beginning to notice differences, make predictions about what may happen and identify possible choices and solutions.