Information about the title: Workbooks with tasks for practicing, applying, and connecting concepts; featuring concise knowledge presentation; a grade-level test, and solutions for self-assessment. Information about the series: The series "Mathematics for Elementary School Grades 5 and 6" in Berlin and Brandenburg combines solid experience and current research findings on differentiation and diagnosis. The exercises are comprehensively structured and differentiated. Understanding mathematics sustainably: Didactically multifaceted tasks promote process-related and content-related competencies. This leads step by step to a sustainable understanding of mathematics. A well-structured set of tasks trains the application of new content. Colors and symbols clearly indicate three different levels and tasks for training process-related competencies. Each learning unit includes.