According to Vygotsky (1978), much important learning by the child occurs through social interaction with a skillful tutor. The tutor may model behaviors and/or provide verbal instructions for the child. Vygotsky refers to this as cooperative or collaborative dialogue.
Grand Junction, Colorado is 4,593 feet (1,397 meters) above sea level.
Colorado elevation map, Courtesy of Maps.com. At a mean elevation of 6,800 feet above seal level, Colorado has the highest mean altitude of the 50 states. Colorado's low point, 3,315 feet above sea level at the Arikaree River in Yuma County, is the highest low point in the nation and is higher than 18 state high points.