Read the following scenario:
Mr Vance is introducing a science lesson on displacement. He shows 5-year-old Clara and her classmates a wide beaker filled with water. He then pours the water into a tall, thin cylinder. Clara insists there is now more water in the cylinder because "it is much higher". When her older brother, 9-year-old Leo, sees this, he laughs and says, "It's the same amount of water, it's just a different shape."
Discuss Piaget's theory of cognitive development with reference to Clara and Leo.
Practise AQA A Level Psychology Cognition and development with exam-style questions for A Level Psychology. 100 questions covering Piaget's theory of cognitive development, Vygotsky's theory of cognitive development, Baillargeon's early infant abilities, and Development of social cognition, 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.