Problem
• Piaget describes four broad stages of cognitive development: sensorimotor (birth-2), preoperational (2-7), concrete operation (7-11) and formal operational (11-adulthood). Define/explain the characteristics of each of these 4 stages. (This question is worth 12 of the 20 points)
• Briefly define the concepts of schemes, assimilation and accommodation.
• What is meant by Vygotsky's term, Zone of Proximal Development?