Key to the Franklin Written Arithmetic (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from Key to the Franklin Written Arithmetic

The Key is designed especially to save labor for the teacher; it is to give him the means of testing the results of the pupils' work, without having to do all the work himself.

The pupil should not have the answer to his problem under his eye at the outset, lest he perform his work with refer ence to that; he ought rather to form the habit of working solely from the conditions given in the statement of the problem. It would be better, even then, that he should be able to test his own work by some method of proof, or by reviewing his processes. But next to this, and perhaps all that can be expected in the majority of cases, would be to let him compare his result with that given in the Key.

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