Teaching materials for teachers in secondary schools, subject: Math, grades 5-7. With "Back to Basics," your students will review and solidify the fundamental skills from elementary school that are essential for secondary education. After completing elementary school, a basic understanding of quantities is expected as a mathematical foundational skill. However, recognizing, comparing, and quantifying quantities still poses a significant challenge for some children and adolescents in secondary school. The photocopiable templates with exercises on quantity understanding provide targeted support for the foundational skill "Quantities" based on the topics "Natural Numbers," "Measurements," and "Money," along with easily understandable and varied games and tasks for independent work, as well as straightforward implementation in the classroom in the form of a learning station or similar. This foundational training helps your learners to enhance and solidify their understanding of quantities, thereby creating the necessary foundation for math instruction in secondary education.