The Karibu language workbooks are a combination of a language book and an exercise book. They integrate the syllable approach into spelling and grammar instruction and explore language. In the language workbooks, children complete tasks directly in the book. Karibu develops learning content based on motivating themes: examining language, oral and written language use, spelling, and work techniques. With a focus on learning strategies, tasks can be adapted to the learner's level. In addition to other linguistic content, such as word components, syllable work is expanded through derivation and continuation. Review and star explorer pages provide children and teachers with an overview of the knowledge acquired and the actual learning progress.