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.
The Park City elevation ranges between 7,000 and 10,000 feet above sea level at a place such as the Jupiter peak and when care is not taken one is likely to become altitude sick. Most people who come from lower altitudes almost always experience some altitude sickness within the first 48 hours of their arrival.