The Teacher's Book shortens lesson preparation time. It includes:

Lesson-by-lesson teaching notes and answer to exercises
Students' Book audio scripts
Teaching tips and notes on supporting students with learning difficulties
Reduced pages from the students' book
Background culture notes,suggested warm-ups and lead-ins
Activity Book audio scripts and an Activity Book answer key
MyEnglishLab makes assigning tasks to classes easier. Assign online tasks to a whole class, a small group or individuals and give them feedback on their work.