Information on the series edition: Clear structure: systematic, integrative, and differentiated acquisition of basic knowledge in the main learning area with "Test yourself!" pages. Linking with the second learning area and parallel differentiation in the "Fordern-und-Fördern" pages. Classwork training or project suggestions in the "Fit in ..." pages. Basic principles: diagnose, differentiate, teach skills. Free online diagnosis. Consistent differentiation at different levels. Transparency of learning: advance organizer, self-diagnosis. Process-oriented preparation for class tests. Independent and cooperative learning. Differentiation and support: support materials in the folder. The folder offers support materials for weaker students at middle school levels. The self-explanatory copy templates can be used as a supplement in class or for self-learning.