The revised edition of the Stratego series offers spelling exercises that allow students in lower secondary education to acquire spelling strategies in a targeted and independent manner. Independent learning is supported through fundamental working techniques of spelling instruction, such as looking up words, finding and correcting errors, word lists, copying, and partner dictation. Self-assessment of learning success is ensured for students both through the included answer section and through competency checks at the end of a practice unit. To accommodate the increasingly heterogeneous student body, differentiated tasks for more advanced students are provided in certain sections. Each volume includes a brief explanation of the series concept, which is intended for both teachers and students.