Interchange Third edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level.

Interchange Third edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level.

Student's Cassette 3 contains selected recordings from Class Cassette Set 3 that students can listen to individually for extra practice.

Interchange Fourth Edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level. Interchange Fourth Edition Online Workbook, Level 1 provides additional activities to reinforce what is presented in Student's Book, Level 1. The Online Workbook includes activities which correspond to each Student's Book unit; instant feedback for hundreds of activities; clear, easy-to-follow navigation; additional audio practice; and simple tools to monitor progress.

Interchange Third edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level.

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 2 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.