Mathematics Teacher (1941) Vol. 34, No. 4
THE MATHEMATICS TEACHER Volume XXXIV Number 4 Edited by William David Reeve Looking at Solid Geometry Through Perspective By E'l'HEr~ SPEARM1\ N, Sanger, Caliform'a "MucH attention should be given to the visualization of spatial figures and relatioons to the representation of three-dimensioona figures on paper, and to
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