Final answer:
The purpose is to educate about American Indian culture and heritage.
Explanation:
The purpose of 'The School Days of an Indian Girl' is to provide insight into the life and struggles of American Indian children in schools, aiming to educate American children about the disappearing native culture.
The author wrote this to preserve the knowledge of native inhabitants and their ways of life for future generations and to highlight the importance of understanding and appreciating diverse cultures.
The intended audience for the novel includes boys and girls in school to educate them about the diminishing American Indian culture and lifestyle.
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