In this practical A5-format volume, you will find a variety of ideas for lesson planning centered around the topic of addition and subtraction within the number range up to 10. The presented learning activities explicitly relate to the three different learning levels - concrete-manipulative, pictorial, and symbolic. Students with intellectual disabilities thus have diverse access to the topic. The material allows you to tailor your teaching to the different learning prerequisites. Thanks to the perforated edge, all pages of the book can be easily torn out and used as practical flashcards. The included CD provides a comprehensive collection of worksheets, photos, and material references that correspond to the presented teaching ideas.