The development of economic reasoning in young children is examined from the theoretical perspective of Piaget's work on cognitive development. To determine a possible correlation between grade level and the type of reasoning children use to approach economic problems, 70 urban children, preschool through grade 3, answered questions which measured…

When one encounters a problem that one has no adequate way of representing, a new mental model for the problem may have to be found. When a possible model is found, an important next step is to evaluate the validity of the model. In this document, examples of subjects finding and evaluating mental models used as problem representations are…