This book, "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. no. 7", by Harold Ordway Rugg, is a replication of a book originally published before 1918. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.