English File Elementary Teacher´s Guide with Teacher´s Resource Centre 4th edition 

The English File fourth edition Teacher´s Guide with Teacher´s Resource Centre gives you everything you need to create flexible lessons that work for your students.The Teacher´s Guide offers a comprehensive walk-through guide to every lesson, in every unit of the Student´s Book, along with at least two photocopiable activities for each lesson.The Teacher´s Resource Centre allows you to manage video, audio, answer keys, tests and much more all in one place online.