Arithmetic Without a Pencil (Classic Reprint) - nuovo libro

Excerpt from Arithmetic Without a Pencil
Teachers of Arithmetic must bear in mind that each new phase of the science should be developed without the pencil in the student's hand; that Written Arithmetic is logically supplementary to Mental Arithmetic; and that all work must be systematic, living, and full of purpose.
Let the aim be clear reasoning, accuracy, and rapidity; with steady, daily gain in each; and let success mean, not so much the acquirement of knowledge of certain facts and principles, as the development of the power that is within.
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