Time Zones, Second Edition is a four-skills program designed to teach teenagers how to use English effectively, developing them into successful global citizens. It features. Engaging real-world content that brings National Geographic Explorers and 21st century topics into the classroom. A communicative approach that offers students the opportunity to learn about and critically discuss global issues. National Geographic video in every unit, introducing amazing places, culture, and information from around the world. An all-new Starter level, introducing students to the essential English language skills and vocabulary necessary for true beginners.