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![Cover for Heinz Steinbring · The Construction of New Mathematical Knowledge in Classroom Interaction: An Epistemological Perspective - Mathematics Education Library (Paperback Book) [1st ed. 2005. 2nd printing 2009 edition] (2009)](https://imusic.b-cdn.net/images/item/original/034/9789048132034.jpg?heinz-steinbring-2009-the-construction-of-new-mathematical-knowledge-in-classroom-interaction-an-epistemological-perspective-mathematics-education-library-paperback-book&class=scaled&v=1551691306)