Nice picture I love this episode, especially because Lisa changed school. It is very interesting, when the Simpsons change their normal life and start to live in new house or visit a new school. Lisa is a good student and she really deserves to visit a school like this, but the price was too high.
Yes, she didn't know what Marge was doing to get her to that school. I just don't understand why the principal refused Lisa. She is smart, has good marks and do many good things at school. Does it mean she isn't smart enough to go at school like that?