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 Interchange Third Edition Teacher"s Resource Book provides teachers with fun and engaging classroom activities that supplement the material in the Student"s Book. The book contains photocopiable activities for extra practice in listening, grammar, writing, and vocabulary, with answers and audio scripts provided. An Audio CD is included for use with the listening section.