The extraordinary exercise session will be offered for the students of the lecture Mechanics. The aim is to provide a recapitulation and consolidation of important physical concepts by actively engaging the students in solving physical problems. The students should go in interaction with one another and discuss the possible approaches to the problems, which will increase their understanding of the underlying physical concepts. This module is not intended to increase the student's workload, as it will not provide new content. It is meant as a support to the tutorials as well as the lecture and is entirely voluntary. Participation of both first year’s students as well as repeaters is strongly recommended.