What did Miss Caroline make Scout read on the first day of school?

On the first day of school, Miss Caroline makes Scout read the alphabet and then has her read the majority of My First Reader and the stock-market quotations from the Mobile Register aloud. After discovering that Scout is literate, Miss Caroline tells Scout to tell Atticus not to read to her anymore because it would interfere with her reading. Scout responds by telling Miss Caroline that her father didn't teach her to read and recites Jem's convoluted, made-up story about how she was born with the ability to read and was switched at birth. Miss Caroline tells Scout not to let her imagination run away and proceeds to explain that it is best to begin reading with a fresh mind, which is why Atticus needs to stop reading to her. Miss Caroline says, "You tell him I'll take over from here and try to undo the damage---" (Lee 23). Scout is devastated at the thought of not being able to read with Atticus anymore and mentions, "Until I feared I would lose it, I never loved to read. One does not love breathing" (Lee 23).