The Mathematics series is being completely revised. The new core curriculum for comprehensive schools in Lower Saxony has, of course, been taken into account. Take a look at the first pages right away! With Mathematics, you can effectively and swiftly implement the required content-related and process-related competencies at all levels of demand. New elements include an entry test with tasks related to prerequisite competencies, self-assessment options, support materials, and solutions for self-checking. There is clear task differentiation (basic, advanced, and additional requirements). Knowledge is presented concisely with important results and useful methods. An exit test is included to verify the necessary competencies, along with self-assessment options, support materials, and solutions for self-checking. Proven elements include a structured system for individual support and an open learning environment designed as a chapter introduction.