Special Method in Arithmetic (Classic Reprint) Charles A. McMurry

Excerpt from Special Method in Arithmetic

It is our purpose in this volume to make plain to teachers in elementary schools the purpose of teaching arithmetic, to outline fully a course of study based upon this controlling idea, and to discuss and Это и многое другое вы найдете в книге Special Method in Arithmetic (Classic Reprint) (Charles A. McMurry)