Educ T 119.06.170 ATWOOD'S COMPLETE GRADED ARITHMETIC. A new edition, thoroughly revised, and printed PREFACE BY WILLIAM E. CHANCELLOR, A.M., SUPERINTENDENT OF SCHOOLS, BLOOMFIELD, N.J. ARITHMETIC is an essential element in every stage of human progress. Though there may be a difference of opinion as to how much of it is essential or desirable, the subject must hold its position as one of the two constants in our fundamental education, of which the other constant is Language. The necessity of Arithmetic in human progress, its value in practical life, and its efficiency as a means of intellectual development demand that it shall be taught in the full light of modern psychology. Most of the teaching of Arithmetic is determined by the text used. Hence it is evident that the use of a book which is unpedagogical in plan, arrangement, and character gives meagre results, while the use of a book which is in harmony with the laws of mental development and mental growth gives results which are commensurate with the time and energy devoted to it. For various reasons it has lately come to pass that Arithmetic is challenged to defend its position as one of the most prominent subjects in our schools. The author of this series shows a strong conviction that the cause of this widespread dissatisfaction with results now obtained is traceable to the express character of the texts in general use. These pages also the author's confident belief that it is possible to prepare a text which is entirely adapted to the needs and gradually developing powers of the child. Modern psychology has contributed to our educational practice no truth of greater importance than this, that education is |