The explanations and tasks are in English to make it easier for students learning German to get started with the exercises. Summer: Error Devil Double Consonants -tz- - Reading Cards. INTERACTIVEThese reading cards contain error words on the topic double consonants and following solutions.What can you expect in this material?✔ Strategies for using double consonants are briefly explained again so that students* can access them at any time.✔ Various practice sentences serve to reinforce the t