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      Cover image for Scientific Method in the Reconstruction of Ninth-Grade Mathematics; A Complete Report of the Investigation of the Illinois Committee on Standardization of Ninth-Grade Mathematics, 1913-1918
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      Scientific Method in the Reconstruction of Ninth-Grade Mathematics; A Complete Report of the Investigation of the Illinois Committee on Standardization of Ninth-Grade Mathematics, 1913-1918

      Harold Ordway Rugg,John R 1887- Clark

      This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the…

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