00948cam a22002411 4500 hew60000125 DLC 20260227111510.0 770822s1960 dcu b f100 0 eng c hew60000125 (OCoLC)3208614 U.S.Dept. of Health, Education, and Welfare. Library NBrockU OCoLC DLC premarc QA11 .C647 1959c Conference on Psychological Problems and Research Methods in Mathematics Training (1959 : Washington University) Research problems in mathematics education, reports. [Washington] U.S. Dept. of Health, Education, and Welfare, Office of Education [1960] vii, 130 p. 23 cm. United States. Office of Education. Cooperative research monograph no. 3 "OE-12008." Includes bibliographies. Mathematics Study and teaching Congresses 34272 34272