01171cam a22002651 4500 e 54000021 DLC 20260227111235.0 921013s1953 dcu f000 0 eng c e 54000021 (OCoLC)26775781 U.S. Office of Education. Library CLU CLU DLC premarc L111 .A72 no. 399 510.78 Kidd, Kenneth Paul. Teaching materials for mathematics classes, compiled by Kenneth P. Kidd and Kenneth E. Brown. [Washington] U.S. Dept. of Health, Education, and Welfare, Office of Education, [1953?] v, 36 p. 27 cm. [U.S. Office of Education] Circular no. 399 With: Selected references to secondary school supervision, 1948-1953 / Ellsworth Tompkins and Ralph Beckley. Washington : U.S. Dept. of Health, Education, and Welfare, Office of Education, 1954. Bound together subsequent to publication. DLC Mathematics Study and teaching. Brown, Kenneth E., 1904- joint author. Circular (United States. Office of Education) ; no. 399. 22217 22217