Arithmetic Teacher (1972) Vol. 19, No. 7
COUNCIL OF TEACHERS OF MATHEMATICS 1972 It stc111ds on its own two feet! We are ta lking about Mathemat ics for Ele mentary School Teache r s: THE RATIONAL NUMBERS, NCTM's text to accommpan the 12 teacher-education films of the series called Elementary Mathematics for Students and Teachers, which has 42 films in all, 3
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