Information on the series edition: The proven basic concept of Doppel-Klick has been extended and differentiated for heterogeneous learning groups, aimed at targeted preparation for the intermediate diploma, secondary school connectivity, and trainability. Differentiation is made easy with transparent differentiation on two levels and additional material for inclusive teaching. The principles include clear progression in the acquisition of competencies, integrative and systematic learning, intercultural and interdisciplinary learning, consistent method training, and stringent reading promotion. The self-evaluation and German-as-a-big-language methodology feature a transparent structure with topic chapters that include two main areas of competence and training units. The program covers genres, authors, and media, along with training on working techniques, spelling, and grammar. Workbooks with solutions and a CD-ROM are available in two versions, with the workbook serving as a basis for basic requirements.