This book offers versatile, innovative, and yet practical suggestions for planning and implementing your mathematics lessons in primary education, including a wealth of teaching materials. The theoretical foundations of the principles of modern mathematics teaching, as well as the planning and design of lessons, are practically applied in the first part of this volume through 20 authentic, carefully selected lesson plans that form the core of this book. Half of these lesson plans are designed for examination teaching assessments, while the other half are also particularly well-executed plans. The lesson plans reflect the current requirements and objectives of primary mathematics education well. They largely cover the process-related and content-related mathematical competencies and guiding ideas of the new curricula.