📗 Interchange Third Edition is a four-level series for adult and young adult learners of English from the beginning to the high-intermediate level. The interleaved Teachers Edition features complete teaching instructions, learning objectives, optional activities, teaching tips, listening scripts, language summaries, and Student Boond Workbook answer keys. Also included are written and oral quizzes, games, photocopiable activities, and fresh ideas for presenting and expanding upon the main exercise types in the Students Book.