What are the aspects of Brecht's educational drama?

"Educational drama" is a form that Brecht often uses when trying to create narrative drama, and it is the direct product of the vigorous propaganda and agitation in the German workers' movement in the 1920s and 1930s. The relationship between individual interests and collective interests, freedom and discipline is the theme of most "educational dramas". It reflects the desire of a group of intellectuals like Brecht for self-transformation after they moved from the exploiting class camp to the proletariat at the climax of the German workers' movement in the 1920s. One of the most successful educational dramas is Mother, which is based on Gorky's novel of the same name. On the basis of the main characters and contents of the original work, according to the actual situation in Germany, it added the content of criticizing the reformism in the workers' movement, opposing the danger of war and turning the imperialist war into a civil war.