How Does Harper Lee occasionally offer the reader an adult perspective of Scout's narrative?

In Chapter Ten, Scout tells the story of Atticus shooting the rabid dog. She begins by relating that as children, she and Jem didn't think their father could do anything and ends the chapter with how very proud they were. In the way this section is written, it is apparent that the story comes from her perspective as an adult looking back, rather than a child relaying what is happening.