With this material, you will equip students with special educational needs to handle money—an essential skill for successfully navigating everyday life! The tasks in this book align with the concept of active-discovery learning. Estimating, rounding, and approximate calculations within the number range of up to 20, 100, and finally up to 1000 play a central role in helping your students develop a solid understanding of the value of money. Open-ended tasks allow all students to engage with the material according to their competencies. A didactic-methodical commentary, practical implementation tips, and an overview of all partial learning objectives of the lesson unit on the topic of money complete the volume.