Information about the series: Opening the doors to mathematics - even in classes with a wide range of abilities. Advantages of the volumes: Excellent diagnostic opportunities. Each chapter includes three tests - an introductory test, a mid-term test, and a test to prepare for a class exam. Each learning unit is clearly divided into tasks for exploration, knowledge presentation, and exercises. Almost every exercise is available at two levels, allowing for parallel differentiation in teaching. Tasks for independent exploration and example-based teaching texts provide various approaches to the subject matter. Method pages for reference and engaging interdisciplinary topic pages. Accompanying materials that provide solid support: Workbooks with and without CD-ROMs containing inserted solutions. Workbook "Basic" for students with greater practice needs starting from the 7th grade - included.