Information about the title: Clear structure in each chapter: Activate - Build - Secure. Activate prior knowledge as your foundation. Secure the knowledge built by checking your new foundation. Understandable examples with solutions. Students can follow standard tasks step by step based on the fundamental examples with detailed solutions. Learn independently. Students can self-check through additional solutions in the appendix to their foundation and check their new foundation. Tasks for everyone. Differentiate with the wide range of basic tasks and advanced tasks. Utilize entry points, stumbling blocks, and outlooks for each topic. Basic tasks are clearly assigned thematically and cater to the foundational level. Advanced tasks connect the topics and address higher levels. Inspire with mathematics.