The course is a follow-up of Didactics NJ1 and Didactics NJ2 in the 3rd year of Bachelor studies and Didactics NJ3 from the 1st year of Master studies. Didactics NJ4 deals with methodological concepts of foreign language acquisition in the historical overview, analysis of historical and contemporary teaching material from the perspective of existing principles and methods and specifics of foreign language acquisition in different age groups. In the following seminars, students will be able to create their own examples of a textbook lesson based on the analysis of contemporary teaching material and convert it into a specific lesson in order to be able to theoretically justify the selected procedures and compare them with the current features of VCJ.