Teachers can decide on which projects to undertake that matches content area. The expert responds to questions the students pose. The students gain more knowledge and understanding of that field and can get questions answered. Students ask a NASA astronaut what life in space is like. Students ask an author about a particular book their class has been studying.
Students ask an artist about a certain technique.
Students ask a mathematician how to find a solution to a particular problem. Students ask an employee of a community business about their job. Students write a friend or relative in another state or country to ask about their culture. Students observe, e-mail, plot locations on a map, and keep journals about the traveler's experiences. By virtually traveling with the expedition leader, students gain knowledge in geography and a better understanding of cultural diversity.