Leading activity is a concept used in psychology to refer to an activity that has special significance in the development of a person's personality at a particular stage of life.
The concept of leading activity was developed within Lev Vygotsky's theory of mental development. According to this theory, at different stages of a person's life there is a specific leading activity that contributes to the formation of mental functions and personality traits.
For example, in early childhood, leading activity may include play, interaction with close adults, and language acquisition. In adolescence, leading activity may become education, self-determination, and personality development. In adulthood, leading activity may be professional work, starting a family, and raising children.
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