Claudia is telling Mrs. Frankweiler that you should try to learn something every day:
"No," I answered, "I don't agree with that. I think that you should learn, of course, and some days you must learn a great deal. But you should also have days when you allow what is already in you to well up inside of you until it touches everything. And you can feel it inside you. If you never take time out to let that happen, that you just accumulate facts, and they begin to rattle around inside of you. You can make noise with them, but never really feel anything with them. It's hollow."
One day, Mr. Keene called all the students and teachers together and said, "This is a fine, fine school! From now on, let's have school on Saturdays too."And then there was more.
School all weekend.School on the holidays.
School in the SUMMER!
What was next . . .
SCHOOL AT NIGHT?
So it's up to Tillie to show her well-intentioned principal, Mr. Keene, that even though his fine, fine school is a wonderful place, it's not fine, fine to be there all the time.
This would be a great story for before a long break or an end of year story. Learning is important, and it doesn't just happen in the classroom.
This would also be a great book for predicting because it has a pattern, then the pattern changes and if kids are paying attention they'll notice it.