The Cambridge Four Corners Level 3 class audio CDs are intended for classroom use. These three CDs provide audio for all the audio sections in the 12 units of the Level 3 Student's Book. These class audio CDs include recordings of the vocabulary, language in context, grammar, interactions, conversation, listening, pronunciation, and reading sections of the Level 3 student's book. Recordings contain natural, conversational English by both native and fluent nonnative speakers. The Four Corners Level 3 student book is a collection of twelve lessons that teach English language grammar, vocabulary, functional language, listening and pronunciation, reading and writing and speaking. For more information, visit cambridge.org/fourcorners.