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.