A group of 105 lower-lower middle class kindergarten children were tested on a set of single variable classification tasks and related-component tasks dealing with color and number. Children who failed to reach criterion on the classification test were randomly assigned to one of five experimental groups, stratified on the basis of performance on…

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…