Information on the series edition: The proven basic concept of Doppel-Klick has been expanded and differentiated for heterogeneous learning groups, with the aim of preparing for the intermediate school diploma, connecting to high school, and enhancing trainability. Differentiation is facilitated through transparent differentiation at two levels and additional materials for inclusive teaching. The principles include a clear progression in the acquisition of competencies, integrative and systematic learning, intercultural and interdisciplinary learning, consistent methodological training, and rigorous reading promotion. Self-assessment is encouraged with a German-as-a-major-language methodology. The structure is transparent and includes thematic chapters with two main competency areas as well as training units, genres, authors, and media. Training in work techniques, spelling, and grammar is included, as well as workbooks with solutions and a CD-ROM in two versions. The workbook serves as the basis for the fundamental requirements, while the supplementary workbook provides additional support for the work.