Examlex
The elasticity of demand is constant along a downward sloping straight-line demand curve.
Preoperational
A stage in Jean Piaget's theory of cognitive development, where children aged 2 to 7 years old engage in symbolic play and struggle with logic and taking the perspective of others.
Sensorimotor
The stage in Piaget's theory of cognitive development (birth to about 2 years) where infants learn about the world primarily through their senses and actions.
Centration
A cognitive limitation in young children's thinking, marked by focusing on one aspect of a situation while neglecting others, characteristic of the preoperational stage.
Conservation Skills
Cognitive abilities that enable a child to understand that quantity or amount does not change when its form or appearance is altered, a concept developed by Jean Piaget.
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