This work is content identical to the workbook 978-3-14-028030-3. Additionally, it contains interactive exercises that can be accessed using the printed online key. Through the interactive exercises, students receive motivation, assessable tasks for guided or self-directed practice, reinforcement, and application of lesson content. Whether at school or at home, students can practice digitally and receive quality feedback and advice for each task. Many diverse forms of tasks increase motivation and lead to learning success.