Examlex
A mirror must be in shape to reflect the light back to a focus.
Human Knowledge
The collective information, understanding, and skills acquired by humans through experience, education, and the senses, encompassing both scientific and cultural insights.
Schemes
Plans of action, based on previous experiences, to be used in similar circumstances.
Object Permanence
The realization that objects continue to exist, even when they can no longer be perceived.
Piaget
Swiss psychologist Jean Piaget, known for his theory of cognitive development that describes how children construct a mental model of the world.
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