A young child, Leo, is shown two identical rows of five coins spaced evenly. He agrees that both rows have the same number of coins. One of the rows is then stretched out so the coins are further apart. Leo now claims that the stretched-out row has more coins.
Identify the Piagetian cognitive ability that Leo is failing to demonstrate, and explain this concept with reference to the scenario.
Practise AQA A Level Psychology Piaget's theory of cognitive development with exam-style questions for A Level Psychology. 59 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.