Why the novel Roll of Thunder won newbery prize?

* Literary quality: The novel is well-written and engaging, with a strong plot and memorable characters. The author's use of language is also impressive, and she does a good job of creating a sense of time and place.

* Historical significance: The novel is set during the Great Depression and explores important social issues such as racism, poverty, and education. It is a valuable resource for students learning about this period in American history.

* Cultural significance: The novel is part of a growing body of literature that is focused on the African American experience. It is an important work that helps to give a voice to marginalized people and their stories.

* Awards and recognition: The novel has won numerous awards, including the Newbery Medal, the Coretta Scott King Award, and the National Book Award. This recognition is a testament to its quality and importance.