The Psychology of Number and Its Applications to Methods of Teaching ArithmeticD. Appleton, 1912 - 309 halaman |
Dari dalam buku
Hasil 6-10 dari 26
Halaman 72
... cost , 1 * J. C. Gláshan , one of the acutest of living mathematicians , de- fines thus : " A unit is any standard of reference employed in count- ing any collection of objects , or in measuring any magnitude . A number is that which is ...
... cost , 1 * J. C. Gláshan , one of the acutest of living mathematicians , de- fines thus : " A unit is any standard of reference employed in count- ing any collection of objects , or in measuring any magnitude . A number is that which is ...
Halaman 81
... cost , length , weight , duration , etc. It may be said that this is not so in the case of books , apples , boys , etc .; that here each book , apple , etc. , is a unit in itself . But this is to fall into the error of separating ...
... cost , length , weight , duration , etc. It may be said that this is not so in the case of books , apples , boys , etc .; that here each book , apple , etc. , is a unit in itself . But this is to fall into the error of separating ...
Halaman 82
... cost of other goods by potatoes them- selves changing in value , etc. * Further , since the measuring unit is itself measured ,. is itself made up of minor or sub - units , it may be of any numerical value , denoting two , three , four ...
... cost of other goods by potatoes them- selves changing in value , etc. * Further , since the measuring unit is itself measured ,. is itself made up of minor or sub - units , it may be of any numerical value , denoting two , three , four ...
Halaman 112
... cost of a farm of sixty acres at fifty dollars an acre is sixty fifties ; here the derived unit of measure is fifty dollars , the number of them sixty , and the primary unit one dollar . The length of a field is fifteen chains - that is ...
... cost of a farm of sixty acres at fifty dollars an acre is sixty fifties ; here the derived unit of measure is fifty dollars , the number of them sixty , and the primary unit one dollar . The length of a field is fifteen chains - that is ...
Halaman 113
... cost of the farm , expressed as sixty fifties , may be expressed as three thousand ones ; and the length of the field , ex- pressed as fifteen twenty - twos , may be expressed as three hundred and thirty ones ( yards ) ; and $ × is ...
... cost of the farm , expressed as sixty fifties , may be expressed as three thousand ones ; and the length of the field , ex- pressed as fifteen twenty - twos , may be expressed as three hundred and thirty ones ( yards ) ; and $ × is ...
Edisi yang lain - Lihat semua
Istilah dan frasa umum
abstrac abstract activity addition and subtraction apples applied arithmetic cent centimetre child complete conception conscious constructive counting cube cube root decimal decimetre defined denominator denotes derived unit digits divided divisor dollar educational equal example exercises factor facts feet figures five foot four frac fractions FRIEDRICH FROEBEL fundamental given quantity gives greatest common measure groups hundredths ical idea of number inches interest least common multiple magnitude means measured quantity measuring unit ment mental method metic metre mind minor units minuend multi multiplicand multiplication and division nature numbers expressed numerical ideas numerical operations numerical value objects perfect conception practice primary unit principle psychical psychological pupil pure number quan quotient rational recognition recurring decimal relation remainder result simply square root subtrahend symbols taken teacher teaching tens things tion tiple tity unit of measure unit of reference unity vague yard