Examlex
Light with a wavelength of 600 nm has a frequency of
Concrete Operations
A stage in Piaget's theory of cognitive development where children gain the ability to think logically about concrete events.
Jean Piaget
A Swiss psychologist known for his pioneering work in child development and cognitive theory.
Preoperational Children
A stage in Piaget's theory of cognitive development, typically ages 2 to 7, characterized by symbolic thinking and egocentrism but a lack of logical operations.
Abstract Principles
Fundamental concepts that are not tied to specific instances or examples, often guiding thinking and behavior in a broad range of situations.
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