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.
Breckenridge, Colo. Atop Peak 8 at Breckenridge Ski Resort, just two feet shy of 13,000 feet (3,962 meters) above sea level in the Rocky Mountains of Colorado, I arrived by climbing the knob above the top terminal of Imperial Express Superchair.