Answer:

Margie wrote in her diary about her experience with the new teacher and her encounter with a book. The following are the details of what she wrote:

New Teacher
- Margie wrote about how she was excited to have a new teacher for the first time in her life.
- She also mentioned how the new teacher was different from the old one and how she was more interested in teaching them things that were not related to their textbook.
- Margie was not used to this kind of teaching, and at first, she found it challenging to comprehend.

Encounter with a Book
- Margie wrote about how she found a book in the attic while playing hide-and-seek.
- She was excited and curious to know what was inside the book as she had never seen a book before.
- Margie was amazed by the book as it had real pages that she could turn and read.
- She also mentioned how the book was old and how it smelled different from everything else she had ever smelled before.

Conclusion
- In her diary, Margie expressed her excitement and curiosity about the new teacher and the book she found.
- She was fascinated by the fact that books were used to teach children in the olden days.
- Margie's diary entry shows how important it is to have new experiences and how they can help us grow and learn.

Margie wrote in her diary, Today 17 May 2157, Tommy found a real book.