Since it's a school story, the main characters are likely to be students who are going through different situations in school. There might also be teachers who play important roles in guiding or influencing the students. There could be some standout students, like the popular ones, the nerdy ones, or the troublemakers. And among the teachers, there may be a strict one, a very kind and inspiring one, etc. But this is all speculation without reading the book.
There might be a story about friendship. For example, two kids from different backgrounds become friends and face challenges together in the story. This shows the power of friendship and how it can overcome differences. They might have to deal with things like school bullies or family problems, but they support each other throughout.
Perhaps there is a story that focuses on a character's self - discovery. The main character might start out feeling lost or unsure of themselves, but through various experiences in the story, they learn about their own strengths and capabilities, which is really inspiring.
Well, it might include tales of animals with human - like qualities. For example, a story about a brave little mouse that overcomes big challenges in its mouse - sized world. Another type could be historical stories told in a way that fourth - graders can understand, like a simple account of an important event from the past.
There could be various interesting stories. Maybe some adventure stories where the characters go on exciting quests. For example, a story about a group of kids exploring a mysterious forest and finding a hidden treasure.