The workbook follows the four principles of spelling: phonological principle, syllabic principle, morphological principle, and grammatical principle. It contains productive exercises for repeated practice and deepening, with a strong emphasis on reflection and partner work. Each task is marked with its level of difficulty. Additionally, the workbook includes "test" pages and tailored training pages following the test. It can be combined with any language book and also works well without a book as a guiding medium. The workbook is also very suitable for mixed-grade use.