The Psychology of Number: And Its Application to Methods of Teaching Arithmetic

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 exact example exercises factor facts feet figures five foot four frac fractions fundamental given quantity gives greatest common measure groups hundred hundredths ical idea of number inches integers interest least common multiple magnitude means measured quantity measuring unit ment mental method metic metre mind minor units minuend multi multiplicand multiplication and division numbers expressed numerical ideas numerical operations numerical value objects perfect conception 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 ured whole numbers yard