What is the big deal in chapters 2-3 in killing a mockingbird

So like chapter 2 is all about Scout and the teacher Mrs. Caroline having troubles. Scout and Caroline get into a fight I’m pretty sure. Because scout can already read, gets caught writing a letter to Dill, and gets lectured by scout about how being helpful by giving money (to the cunningham poor person in class) actually isn’t helpful. (Does this make sense?) anyways they have a huge argument thanks to all of this.

Chapter 3 involves like scout realizing education “isnt for them”. Scout wants to quit school but Atticus agrees to continue reading with her in the evening in secret. Scout continues school. Chapter 3 also had a poor kid I think Walter going to eat lunch/dinner at the Atticus home with scout and (jeb? I think his name is) and scout gets called rude for pointing out Walter’s weird habit of putting molasses on his food. But that’s moderately it.

The quote would be the one the one