The Sixth Grade Page
It is ironic that Harriet's classmates like the things she writes in the Sixth Grade Page so much. She writes stories based on her spying and her notebook observations, and these are the very things that hurt them and made them angry with her in the first place. When she is using her skills for a constructive form of entertainment, she has the approval of her classmates.
Sport's Role
Sport's role in his family is ironic, since he has taken on so many adult responsibilities because of his father's absentmindedness and negligence even though he is the child. Sport and Mr. Rocque have reversed roles, and Fitzhugh plays up this irony through the amusing, adult-like things that Sport says, like when he tells Harriet he does his family's finances and wants to be a CPA.
Ole Golly Leaving
It is ironic that Mrs. Welsch fires Ole Golly the very same night she gets engaged and plans to move away, anyway. Although the disagreement over taking Harriet to the movies is a sour note to end on, it serves as the push Ole Golly needed to make the next step in her life and give Harriet the space to grow up on her own.
