Project booklets are available for every grade level and focus on specific topics: 2nd grade covers butterflies, 3rd grade covers whales, and 4th grade focuses on Leonardo da Vinci. The series edition "Einsterns Schwester - Language and Reading" emphasizes interdisciplinary and largely independent work for children, allowing them to learn at their own pace using various approaches. Exercises to improve working memory and attention are integral to the concept and serve as essential components for successful lifelong learning. The popular character Lola provides examples and demonstrates effective work techniques. The thematic booklets "Einsterns Schwester" are modular and consist of four thematic booklets and one project booklet, all packaged in a slipcase. The four thematic booklets address the exploration of language, correct writing, planning and composing texts, as well as independent, curriculum-oriented reading, with a focus on step-by-step learning to ensure that each page is concentrated and effective.