The "Lambacher Schweizer Mathematics. Student Book Grades 12/13" is a comprehensive teaching resource specifically designed for the qualification phase in advanced courses. It is aimed at students preparing for a higher level of requirements. The book is aligned with the new core curricula and offers a structured approach to mathematical concepts and problem-solving. With a clear layout and didactically prepared content, it supports learners in deepening their mathematical skills and being optimally prepared for exams. The materials are presented in a way that is suitable for both classroom instruction and independent study. The book includes a variety of tasks and examples that promote the learning process and facilitate the application of mathematical theories in practical contexts.