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.