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Convert the mixed number to an improper fraction:
Jean Piaget
A Swiss psychologist known for his pioneering work in the study of child development and his theory of cognitive development.
Lev Vygotsky
A psychologist from Russia recognized for his contributions to understanding cognitive growth, especially his theory on the Zone of Proximal Development.
Lawrence Kohlberg
A psychologist known for his theory of moral development, which suggests that individuals progress through stages of moral reasoning as they grow.
Zygotes
The initial cell formed when a new organism is produced by the combination of male and female reproductive cells.
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