Final answer:
Scout's reading and writing skills annoyed Miss Caroline because they challenged her authority as the new teacher, forcing her to confront a student not fitting into the expected educational mold.
Step-by-step explanation:
Scout's ability to read and write annoyed her teacher Miss Caroline because it challenged Miss Caroline's authority in the classroom.
Miss Caroline, as a new teacher, was seeking to establish her method of teaching and likely felt undermined by Scout's advanced abilities, as they were not in line with the educational norms or expectations of the environment Miss Caroline was prepared to teach in.
This situation highlights the difficulty that educators can sometimes face with students who may be ahead of the curriculum, requiring the teacher to adjust their approach.