Interchange Fourth Edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level. The Interchange Fourth Edition interleaved, spiral-bound Teacher's Edition with Assessment Audio CD/CD-ROM, Level 1 features complete teaching instructions, optional activities, audio scripts, language summaries, and Student's Book and Workbook answer keys. The Assessment CD/CD-ROM provides a complete assessment program, including oral and written quizzes, as well as mid-term and final tests in printable PDF and Microsoft Word formats.
Jack Croft Richards is an applied linguist from New Zealand, specializing in second and foreign language education, teacher training, and materials design. He has written numerous articles and books. Most of his books and articles are in the field of second language teaching and have been translated into many different languages. He was appointed full professor in the Department of English as a Second Language at the University of Hawaii in 1981.