Examlex
An object 0.50 cm high is 5.0 cm from a concave spherical mirror of focal length 20 cm.How high is the image and is it erect or inverted?
Preoperational
A stage in Jean Piaget's theory of cognitive development, occurring roughly between the ages of 2 and 7, characterized by symbolic thinking, egocentrism, and difficulty understanding abstract concepts.
Concrete Operational
A stage in Piaget's theory of cognitive development during which children gain the ability to think logically about concrete events.
Formal Operational
The final stage in Piaget's theory of cognitive development, beginning around age 11, where individuals gain the ability to think abstractly and logically about hypothetical situations.
Prefrontal Cortex
The front part of the frontal lobes of the brain, involved in complex behaviors such as planning, decision making, and moderating social behavior.
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