21 CENTURY COMMUNICATION LEVEL 4 ( PLUS SPARK) (LISTENING, SPEAKING AND CRITICAL THINKING) 2ND ED.

"21st Century Communication, Second Edition, a four-level series, presents big ideas from TED and National Geographic Explorers to engage students in English. Each unit explores one idea from different angles to prompt students to think critically and express their own opinions, while teaching the skills needed to communicate with confidence. Through inspiring models of effective communication, students develop essential listening and speaking skills to achieve academic success for the 21st century."