JOURNAL of RESEARCH in MATHEMATICS EDUCATION. Reston,1(1970)-  -J.Res.Math.Ed.	---> JG-15   5(1974)-11(1980).  lac. 6(1975) n.1; 7(1976) n.2; 8(1977) n.4-5; 9(1978) n.1-2; 11(1980) n.4-5
ISSN 0021-8251	Publisher : nctm.org. National Council of Teachers of Mathematics