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.
Additionally, the official elevation of Denver is measured outside the west entrance to the building, where the fifteenth step is engraved with the words One Mile Above Sea Level. From this step, at 5,280 feet (1,609 m), the sun can be seen setting behind the Rocky Mountains.