Information about the series: Clear structure in each chapter: Activate - Build - Secure. Activate prior knowledge in "Your Foundation." Secure the acquired knowledge in "Check Your New Foundation." Understandable examples with solutions: Students can follow standard tasks step by step using the basic examples with detailed solutions. Independent learning: Students can self-check through additional solutions in the appendix to "Your Foundation" and "Check Your New Foundation." Tasks for everyone: Differentiate with the extensive range of basic tasks and advanced tasks. Utilize the introduction, stumbling blocks, and outlook for each topic. Basic tasks are thematically clearly assigned and cater to the fundamental level. Advanced tasks connect the topics and address higher levels. Inspire with mathematics.