It's time to change. Time to collaborate. The Teacher's Book is interleaved with the pages from the Student's Book and includes background information, warmers and teaching tips, optional tasks for mixed ability at 3 levels, tips on collaborative learning, ideas for the flipped classroom, and help with new digital methodologies and tools. It also includes an introduction to the Key competencies in the LOMLOE, including a mapping to the Cambridge Life Competencies Framework. The Digital Pack on Cambridge One, accessible through a code in the Teacher's Book, offers Student's eBook and eWorkbook, Practice Extra, Collaboration Plus, Test&Train, (levels 2 and 4) and other teacher resources.