The Mathe bridge course will be held completely in german, including all materials.
You can find the specific schedule for the current O-week here.
In the one-week math bridge course, older students will use practice exercises to help you make the transition from school math to the demands of university courses. This is strongly recommended not only for bachelor’s mathematics students, but also for computer scientists, middle school and high school teachers. At the end you have the opportunity to take part in a trial lecture, which is also given by a student.
At the end of the math bridge course, a student will give you a mathematics lecture. This is not yet relevant to your studies, but should give you an insight into the process and pace of such a course.
More information about the math bridge course can also be found on the FIM orientation week page.