The significant events that occur within this chapter are the way in which Bruno becomes more and more accustomed to his life in Out-With. Things, from his perspective, seem to be the same to all intents and purposes. His sister is still mean to him, and Kotler still acts like he is the most important person there and continues to flirt with Gretel when Bruno's father is not around.
His father hires a tutor for Bruno and Gretel named Herr Lizst, who attempts to teach Bruno all about the glorious history of the Fatherland, and in particular the "great wrongs" that had been committed against the Germans. This is something that Bruno is very happy about, as he interprets the "great wrong" to be his forced removal from his old house to Out-With. The classes he receives from Herr Lizst helps Bruno remember past memories such as how he loved to explore. Bruno finds himself contemplating and thinking about the people in the striped pyjamas that he can see from the window and wondering about their difference from the soldiers that he sometimes sees with them. Note the following question he asks himself:
What exactly was the difference? he wondered to himself. And who decided which people wore the striped pyjamas and which people wore uniforms?
Bruno determines to become adventurous once again and to search out the reason. Note how the focus on Bruno's thoughts and feelings reveals his childlike simplicity and way of viewing the world. To him, all humans are the same, and he can't understand why this group of people in striped pyjamas are treated so differently.