Akindergarten teacher instructs parent volunteers to take a piagetian approach when interacting with his students during learning center time. he recommends the volunteers:

He recommends the volunteers to allow the children to learn by doing things themselves and ask open ended questions to stimulate thinking~

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada