The course MR1 is a free study activity which you are strongly recommended to attend. During the course you are to work on your presentations of the article, the animation program animutube and the exam topics. Furthermore, a member of each group is to give an 8 minutes talk on one of these subjects.
MR1 is not a part of the Mathematics 1B course, but an independent 1ECTS course. It consists of 5 half day sessions. In order to pass MR1 you must be present for at least 3 of these sessions (whether you pass MR1 or not has absolutely no connection to the Mathematics 1B exam later in January).