Challenges provides * Coursebooks that can be completed in one year, giving students a clear sense of progress* Informative and engaging topics that involve teenagers in their learning* Unique features include word building, text building and sentence patterns* Characters that promote positive values and use real spoken language.* Activities for building learner strategies for independent learning* Magazine at the back of the Students Book to support mixed ability classes* Strong grammar and skills sections give students confidence in using the language* A full Word Bank that is easy to use* A unique teacher's package gives total support and maximum flexibility sakriti opis