New Interchange Intro Lab Cassettes are part of a lab program consisting of a Lab Guide and four hour-long Lab Cassettes. The program, designed to supplement each unit in the Student’s Book, gives students practice in listening comprehension, pronunciation, grammar, vocabulary, and oral fluency. The Cassettes and Guide are suitable for use in the language laboratory, in the classroom, or for self-study. The Lab Cassettes contain exercises for pronunciation practice, to promote fluency, and to improve oral comprehension. The correct answers are provided on the Lab Cassettes using natural and conversational language. The Lab Guide can be purchased for use with the Cassettes. The Guide provides varying levels of support for the learner: Part A contains only the directions to each exercise, Part B contains the script for each exercise without the responses, and Part C contains the complete script for each exercise with the responses