The formula collection from Cornelsen is a comprehensive textbook specifically designed for secondary education level I in Bavaria. This third edition is optimally aligned with the LehrplanPLUS and provides valuable support for students preparing for exams or wishing to deepen their mathematical knowledge. The collection includes a variety of formulas and mathematical concepts that are essential for teaching and exam preparation. Additionally, the book is also approved for the Qualifying Certificate, making it an important resource for middle school. With a paperback cover and 88 pages, it is both handy and durable, ideal for daily use in school life.