Edue T 119.08.727 NARVARD COLLEGE LIBRARY May 24, 1928 COPYRIGHT, 1877, BY COPYRIGHT, 1908, BY MOD. PRACT. ARITH I-P 16 PREFACE THE purpose of this revision of Ray's "New Practical Arithmetic" is to adapt the book more closely to modern methods of teaching Arithmetic, without removing any of the features that have so long held the favor of thousands of teachers and pupils throughout the country. The revision, therefore, provides for the enrichment of some subjects, like Practical Measurements, Bills and Accounts, etc., which receive much consideration in the modern school curriculums, the abridgment of others of waning importance, and the total omission of those that have become obsolete. The philosophical method of the original edition, however, remains unchanged. Every principle is clearly explained by an analysis or solution of a simple example from which a rule is derived. The application of the rule to the solution of problems of gradually increasing difficulty completes the presentation of the subject. The exercises have been constructed with a view to affording the mental discipline necessary to strengthen the reasoning power and to giving the pupil a mastery over the problems that are sure to present themselves in the common walks of life. They are founded on considerations both of psychological pedagogy and of practical utility. |
