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 topics: examining language, oral and written language use, spelling, and work techniques. By focusing on learning strategies, tasks can be addressed according to the students' learning levels. In addition to other linguistic content, syllable work is expanded through derivation and further exploration. Review and star researcher pages provide both the child and the teacher with an overview of the acquired knowledge and the actual learning progress.