Ключевые слова: business, cartography, city, classroom, colorful, communication, computer, concept, continents, countries, desk, display, education, encyclopedia, equipment, exploration, geographic, geology, geometric, global, graphic, illustration, instruction, instructor, intelligence, internet, knowledge, learn, learning, lecture, lesson, navigation, planet, presentation, research, room, scholar, science, screen, students, study, teacher, teaching, technology, travel, tutor, tutorial, view, worldwide,