who were the constructivists in developmental theory
Piaget vs. Vygotsky: The Cognitive Development Theory By Brandi Davison Takeaways Cognitive development is defined as development of the ability to think and reason. Both Piaget and Vygotsky were regarded as constructivists Piaget's theory has 4 set stages; Vygotsky does not believe in set stages. Cognitive development is defined as development of the ability to think and reason (University of Chicago Comer Children's Hospital, 2006). Jean Piaget and Lev Semionovich Vygotsky were both enormously