Cognitive Development - Piaget's Experiments

- Three Mountains (Egocentrism)

A child sits at one point (eg A) whilst an experimenter sits at the opposite part (eg C). The child is described to ask what they can see. They are then asked to describe what the experimenter can see. If they describe what they can see, then they are egocentric.


- Counters (Number)

The child is asked if there is the same amount of counters in each row, and they say yes. One of the rows are spaced apart whilst the child watches. They are asked the same question. If they say no, they cannot conserve number.



- Plasticine (Mass)

The child is asked if there is the same amount of plasticine, and they say yes. It is rolled whilst the child watches. They are asked the same question. If they say no, they cannot conserve mass.




- Liquid (Volume)

The child is asked if there is the same amount of liquid in both glasses, and they say yes. The contents of one glass is then poured into a taller glass. They are asked the same question. If they say no, they cannot conserve volume.