I found this book on a U of T sight with a list of useful resources about aboriginal education. (http://www.oise.utoronto.ca/deepeningknowledge/Teacher_Resources/Infusing_Aboriginal_Content_and_Perspectives_into_Your_Teaching/Infusing_Aboriginal_Perspectives.html)
“An important collection for teachers, filled with essays criticizing children’s books and their portrayal of Native American culture. The essays in this book also help to broaden understanding of Native cultures.”