Describe three of the following perspectives regarding conceptlearning, and compare and contrast them regarding their usefulnessin explaining how people acquire concepts:
                 • Prototypes
                 • Exemplars
                 • Buildup of associations
                 • Hypothesis testing
Describe at least three ways in which students inPiaget’s formal operations stage are likely to think differentlyfrom those in the concrete operations stage. Illustrate eachcharacteristic with a concrete example of how students in each ofthe two stages might think or behave.