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 Level 1 Student's Book builds on the foundations established in the Intro for accurate and fluent communication, extending grammatical, lexical, and functional skills. Topics such as school, work, and food are presented in unique ways using interesting real-life information. The Student's Book contains 16 teaching units, frequent progress checks that allow students to assess and monitor their own learning, and a listening self-study section. Included is a Student Audio CD that contains the conversation, pronunciation, and self-study sections from the Student's Book. Student's Book B contains units 9–16, the second half of the complete Level 1 Student's Book.

Unit 9 What does she look like?
Unit 10 Have you ever ridden a camel?
Unit 11 It's a very exciting place!
Unit 12 It really works!
Unit 13 May I take your order?
Unit 14 The biggest and the best!
Unit 15 I'm going to a soccer match
Unit 16 A change for the better!