This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ...grade the amounts furnished by teachers was also included in the average. 3 As stated in Part II, the tables are their own best interpretation and the brief notes that accompany them are not meant to do more than facilitate a general survey by giving sample readings. Reading the column of table XXI ...
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ...grade the amounts furnished by teachers was also included in the average. 3 As stated in Part II, the tables are their own best interpretation and the brief notes that accompany them are not meant to do more than facilitate a general survey by giving sample readings. Reading the column of table XXI marked week minutes the lower numbers opposite each system give the school time expended in studying and reciting arithmetic for one week of each of the first six grades; the upper, the estimated study time used out of school. As the school time expenditures are obviously the more reliable, they are the measure of time cost used in this table and elsewhere, except as otherwise specified. The column marked dezriation from the median is self-explanatory, the median being the measure above and below which half the cases lie, which in this table is 1149. The third column is the deviations in per cent of the median. These three columns each show the wide variability as to time expenditure among the systems. The showing of the first column may be briefly summarized by noting that the number of week minutes varies from five hundred seven for system XXII to one thousand eight hundred fifty-four for system IV, with an average deviation of two hundred twenty-two. That is, system IV spends over three and one-half times as much time on arithmetic as system XXII, and the other systems range between these extremes. The wide variation comes out even more strikingly in the second and third columns. This table furnishes the basis for comparing time expenditure with abilities produced, as shown in the following tables. The next two tables begin this comparison. As seen from its heading table XXII gives the systems in order of achievements. These serial standings...
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