Interchange Fourth Edition is a fully revised edition of Interchange, the world's most successful series for adult and young-adult learners of North American English. The course has been revised to reflect the most recent approaches to language teaching and learning. It remains the innovative series teachers and students have grown to love, while incorporating suggestions from teachers and students all over the world. This edition offers updated content in every unit, grammar practice, and opportunities to develop speaking and listening skills. Interchange Fourth Edition features contemporary topics and a strong focus on both accuracy and fluency. Its successful multi-skills syllabus integrates themes, grammar, functions, vocabulary, and pronunciation. The underlying philosophy of the course remains that language is best learned when it's used for meaningful communication.

Interchange Level 2 - A2 Pre-Intermediate to B1 Intermediate

Teacher's Book
•Page-by-page teaching notes with step-by-step lesson plans.
•Audio scripts and answer keys for the Student’s Book, & Workbook.
•Language summaries of the new vocabulary and expressions in each unit.
•Supplementary Resource Overviews that make it easy to plan what to teach for each unit.
•A complete assessment program, including oral and written quizzes, as well as review unit tests in printable PDF and Microsoft Word® formats.
•Audio MP3s, audio scripts, and answer keys for the tests and quizzes.

Student's Book
The Student’s Book is intended for classroom use and contains 16 six-page units.

Workbook
The Workbook’s six-page units can be used in class or for homework. Each unit provides students with additional grammar, vocabulary, reading, and writing practice.
 
http://www.cambridge.org/us/cambridgeenglish/catalog/adult-courses/interchange-4th-edition