Reading Explorer is a six-level content-based reading series featuring video from National Geographic to help develop reading and vocabulary skills for all learners. Each unit of Reading Explorer contains two reading passages and an optional video activity. Reading passages cover a wide range of real-world topics related to culture, science, social studies, travel, and adventure. Paperback: 160 pages Publisher: National Geographic / Heinle, Cengage Learning; 1st edition (February 25, 2010) Language: English ISBN-10: 1111057087 ISBN-13: 978-1111057084 Product Dimensions: 8.4 x 0.4 x 10.7 inches Link Download http://nitroflare.com/view/E0023F1B94B66BE/ http://nitroflare.com/view/45C212E9C850FDC/ http://sachviet.edu.vn/threads/reading-explorer-6-levels.29092/https://nitroflare.com/folder/949760/L00VuZ2xpc2g=