The Teaching of Elementary Mathematics;
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In our eReader you can find the full English version of the book. Read The Teaching of Elementary Mathematics; Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Teaching of Elementary Mathematics;
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Or better still, by letting x represent this amount (not the number of dollars, since we are preserving the dollar sign before the other numbers), 1. 0. 95* = $1073. 50 2. . *. *= $1073. 50-*- 0. 95 = $1130. 124 THE TEACHING OF ELEMENTARY MATHEMATICS This introduces the equation form in a more pro- nounced way, but this is now generally approved by educators. 1 There are still some advocates of the following plan: 1. 95% of the amount is $1073. 50. 2. /. I% of the amount is ^ of $1073. 50= $11.... 30. 3. /. 100% of the amount is 100 x $11. 30 = $1130. This, the unitary method, is by some thought to be simpler than the others, though why it is simpler to derive o. Oi from 0. 95 than to derive I from 0. 95, it is difficult to say. The following form has also an occasional advo- cate: 1. Let 1 00% equal the amount. 2. Then 100% 5% = 95%. 3. If 95% = $1073. 50, 4- i% = $ 11-30, 5. And 100% = $1130. This is a relic of the mediaeval method of " false posi- tion, " a pre-algebraic device. The 100% is merely I, and we begin by letting this i equal the unknown 1 "Alle Padagogen sind hierin einverstanden.
What to read after The Teaching of Elementary Mathematics;?
You can find similar books in the "Read Also" column, or choose other free books by Smith, David Eugene, 1860-1944 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Or better still, by letting x represent this amount (not the number of dollars, since we are preserving the dollar sign before the other numbers), 1. 0. 95* = $1073. 50 2. . *. *= $1073. 50-*- 0. 95 = $1130. 124 THE TEACHING OF ELEMENTARY MATHEMATICS This introduces the equation form in a more pro- nounced way, but this is now generally approved by educators. 1 There are still some advocates of the following plan: 1. 95% of the amount is $1073. 50. 2. /. I% of the amount is ^ of $1073. 50= $11.... 30. 3. /. 100% of the amount is 100 x $11. 30 = $1130. This, the unitary method, is by some thought to be simpler than the others, though why it is simpler to derive o. Oi from 0. 95 than to derive I from 0. 95, it is difficult to say. The following form has also an occasional advo- cate: 1. Let 1 00% equal the amount. 2. Then 100% 5% = 95%. 3. If 95% = $1073. 50, 4- i% = $ 11-30, 5. And 100% = $1130. This is a relic of the mediaeval method of " false posi- tion, " a pre-algebraic device. The 100% is merely I, and we begin by letting this i equal the unknown 1 "Alle Padagogen sind hierin einverstanden.
What to read after The Teaching of Elementary Mathematics;?
You can find similar books in the "Read Also" column, or choose other free books by Smith, David Eugene, 1860-1944 to read onlineMoreLess
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