Reading Explorer is a five-level series which uses adapted National Geographic text, images, and video to develop reading and vocabulary skills for learners of English. The Reading Explorer Teacher's Guide features: - Course overview and illustrated unit walkthrough - Detailed teacher notes, answer keys, and background information for each unit - Suggestions for adapting tasks for mixed-level classrooms - Tips for developing learners' reading and vocabulary skills - Practical ideas for using the video in class - Recommendations for extensive reading - Definitions for target vocabulary items - Glossary of useful terms.