How can I communicate with the teachers or the principal if I cannot speak German?

Most people in Germany do understand and speak English, so at least basic communication should be possible in English. If you only speak and understand basic English or German you could also ask the teacher or principal to talk more clearly and slowly to make sure you understand the contents. If you or your spouse do not speak English there are other options, for example translators. Translators could be hired by the school, if they choose to do so. Please ask and encourage the teachers or the school authorities to provide a translator for you. If a professional translator is not an option, you can reach out to a friend, your spouse or your child to translate at least the most vital information. However, be aware that your child might not translate all information if the conversation is about his or her performance in school.