## The Psychology of Number and Its Applications to Methods of Teaching Arithmetic |

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Halaman 46

We can directly compare the

the same quality ; but we can not directly compare — as to

of different qualities , or a length of calico with one of silk . But if we know that ...

We can directly compare the

**cost**of three yards of calico with that of nine yards ofthe same quality ; but we can not directly compare — as to

**cost**- lengths of calicoof different qualities , or a length of calico with one of silk . But if we know that ...

Halaman 48

We count chairs , beds , splints , feet , eyes , children , stamens , etc . , simply to

get their sum total , the how many ; we measure distance , weight , bulk , price ,

...

We count chairs , beds , splints , feet , eyes , children , stamens , etc . , simply to

get their sum total , the how many ; we measure distance , weight , bulk , price ,

**cost**, etc . , to see how much there is . Some writers say that these “ two kinds ” of...

Halaman 51

The house has been erected at a certain

units which enter into these different factors , is the only way to discover that

CHAPTER IV . THE ORIGIN OF NUMBER : SUMMARY AND THE ORIGIN OF ...

The house has been erected at a certain

**cost**; the counting off and valuing of theunits which enter into these different factors , is the only way to discover that

**cost**.CHAPTER IV . THE ORIGIN OF NUMBER : SUMMARY AND THE ORIGIN OF ...

Halaman 56

Or , in addition to the mere size of the field , it may be necessary to take into

account not only the value of the crop it will raise , but also the

Here there must be a much more complete adjustment of activities . The analysis

...

Or , in addition to the mere size of the field , it may be necessary to take into

account not only the value of the crop it will raise , but also the

**cost**of tilling it .Here there must be a much more complete adjustment of activities . The analysis

...

Halaman 69

Examples of numerical value are : the yard of cloth

box will hold thirty - six cubic inches ; the purse contains eight ten - dollar pieces .

The seventeen , thirty - six , eight represent just so many units of measurement ...

Examples of numerical value are : the yard of cloth

**costs**seventeen cents ; thebox will hold thirty - six cubic inches ; the purse contains eight ten - dollar pieces .

The seventeen , thirty - six , eight represent just so many units of measurement ...

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### Istilah dan frasa umum

abstract activity actual addition already amount applied arithmetic attention become begin carry cent child clear common complete conception conscious constructive cost counting decimal defined definite denotes digits direct divided division divisor dollar educational equal exact example exercises expressed factor facts feet figures five foot four fractions fundamental given gives groups hundred idea Illustrations inches interest involved learned least less magnitude means meas measured quantity measuring unit mental method mind minor multiplicand multiplication nature necessary objects once operations original practice present primary principle problem psychological pupil quantity rational reason recognition reference relation remainder repeated represents result root seen sense separate simply square stage subtraction taken teacher teaching tens things third tion true unit of measure unity ured vague whole yard

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