With time, an increasing number in the world population is becoming old, and changes in the aging brain mean that a significant proportion of the aged are likely to be dependent on others. The devotion of resources to research into the aging brain could bring benefits far outweighing the investment. (Author/CW)

Describes the social role of cognitive growth throughout the lifetime. Includes mediation, self-regulation, metacognition, the zone of proximal development, and critical and creative thinking. Discusses resources, methodology, and goals of education in a democratic society. Emphasizes the value of independent, self-monitoring individuals who…