Time Zones, Second Edition is a four-skills program specifically designed to teach teenagers effective English, enabling them to become successful global citizens. The program features engaging content that directly connects National Geographic Explorers to current 21st-century topics. This content encourages students to explore and critically discuss global issues. Each unit uses National Geographic videos that showcase fascinating locations, cultures, and information from around the world. The brand-new Starter-level module equips beginners with essential English language skills and vocabulary.