A study unit at UW is 1.5 hours. There are very different ways to obtain credits for your courses. Some are credited based on an attendance record, others on an exam and others still on a written assignment.
As a short-term student, you can select the study programmes you wish to attend from the ECTS Course Catalogue even before your arrival. These may be related to a course you took at your alma mater, or you can choose a course in Polish or another foreign language, or for example Physical Education. If your application submitted at mobility.uw.edu.pl is accepted, you will receive a login and a password to the USOSweb System, in which you can register for courses.