Examlex
Astronomers use the word "limb" to refer to what part of a celestial body?
Secondary Circular Reactions
A developmental stage in infants, identified by Jean Piaget, involving repetitive actions focused on external objects, symbolizing the beginning of intentional and coordinated activities.
Object Permanence
The understanding that objects continue to exist even when they cannot be seen, heard, or touched, typically developed during infancy.
Secondary Circular Reactions
Repetitive actions in infants aged 4-8 months, centered around the infant's own body, demonstrating the beginning of intentionality.
Primary Circular Reactions
A concept in child development where an infant learns to reproduce an event that initially occurred by accident (e.g., sucking their thumb).
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