The In Sync Language Builder is a flexible and versatile resource that offers self-access material for students in a wide range of teaching situations. It can be used along with the Student Book or as a resource for homework exercises. The Language Builder is divided into a multi-level Workbook and a Grammar Bank containing grammar reference pages and extra grammar practice exercises. In Sync is an innovative and easy-to-use four-level course that reflects the lives and experiences of teenagers. In Sync stimulates learning and broadens students' horizons through lessons that engage both intellectually and emotionally.