Mathematics Teacher (1972) Vol. 65, No. 1
OF MATHEMATICS JANUARY 1972 \'OLl':\IE LX \ ', :>IU :\IBER I The Key of e Brnuml Jf. Oliver Analysis of Calculus Problems II arlry Flanders The Limit Concept on the Geoboard J. B. lfmkin A Transformation Approach to Tenth-Grade Geometry Za/11wn P. ['siskin and . lrtlntr F. ('o.rford A Journal of the National Council of
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