All American C1/C2 Teacher s Book contains: clear lesson plans with detailed instructions and the key to all tasks from the Student s Book, suggestions for extension tasks and teaching tips, the recording scripts with justification underlined for the listening tasks included in the Student s Book, photocopiable tasks for use with students who finish early in class, as a way of reviewing prior to a test, or as extra practice of the vocabulary and grammar in the Student s Book, the keys and recording scripts (justification underlined) for the Workbook and Test Book.