The Supervision of Arithmetic
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14 1201-1300 .......... 6 1301-1400 .......... 13 1401-1500 .......... 17 1501-1600 .......... 14 1601-1700 .......... 12 1701-1800 ..'........ IS 1801-1900 .......... 4 1901-2000 .......... 6 2001-2100 .......... 6 2101-2200 .......... 2 2201-2300 6 2301-2400 .......... 2 2401-2500 .......... I 3001-3100 .......... I Total 148 Median — 1338 minutes per week Av. Dev. — 407-24 minutes ist quartile — 950 3d quartile — 1746 These tables, showing a range of 2500 minutes and an average deviation of ...407 minutes, clearly indicate the absence of a time standard.
Note. — The seventy-sixth case was taken as the median. The de- viation for each group was found by finding the variation of the average of the group from the median and multiplying by the frequency.
TIME ALLOTMENT FOR ARITHMETIC 63 The next two tables give the percentile distribution of the total school time devoted to arithmetic : TABLE XVIII Table Showing Distribution of Cities According to Per Cent OF Total School Time, Exclusive of Recesses and Opening Exercises, Devoted to Arithmetic Per Cent Cases Per Cent Cases Per Cent Cases 6.1 3 II.O 3 16.0 2 6.4 2 II.
What to read after The Supervision of Arithmetic?
You can find similar books in the "Read Also" column, or choose other free books by Walter Albert Jessup to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
14 1201-1300 .......... 6 1301-1400 .......... 13 1401-1500 .......... 17 1501-1600 .......... 14 1601-1700 .......... 12 1701-1800 ..'........ IS 1801-1900 .......... 4 1901-2000 .......... 6 2001-2100 .......... 6 2101-2200 .......... 2 2201-2300 6 2301-2400 .......... 2 2401-2500 .......... I 3001-3100 .......... I Total 148 Median — 1338 minutes per week Av. Dev. — 407-24 minutes ist quartile — 950 3d quartile — 1746 These tables, showing a range of 2500 minutes and an average deviation of ...407 minutes, clearly indicate the absence of a time standard.
Note. — The seventy-sixth case was taken as the median. The de- viation for each group was found by finding the variation of the average of the group from the median and multiplying by the frequency.
TIME ALLOTMENT FOR ARITHMETIC 63 The next two tables give the percentile distribution of the total school time devoted to arithmetic : TABLE XVIII Table Showing Distribution of Cities According to Per Cent OF Total School Time, Exclusive of Recesses and Opening Exercises, Devoted to Arithmetic Per Cent Cases Per Cent Cases Per Cent Cases 6.1 3 II.O 3 16.0 2 6.4 2 II.
What to read after The Supervision of Arithmetic?
You can find similar books in the "Read Also" column, or choose other free books by Walter Albert Jessup to read onlineMoreLess
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